EP3801281A1 - Verfahren und system zum ermitteln der schallgeschwindigkeit in einem fluid im bereich eines implantierten, vaskulären unterstützungssystems - Google Patents
Verfahren und system zum ermitteln der schallgeschwindigkeit in einem fluid im bereich eines implantierten, vaskulären unterstützungssystemsInfo
- Publication number
- EP3801281A1 EP3801281A1 EP19729271.7A EP19729271A EP3801281A1 EP 3801281 A1 EP3801281 A1 EP 3801281A1 EP 19729271 A EP19729271 A EP 19729271A EP 3801281 A1 EP3801281 A1 EP 3801281A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sound
- reflector
- fluid
- speed
- support system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/50—Details relating to control
- A61M60/508—Electronic control means, e.g. for feedback regulation
- A61M60/538—Regulation using real-time blood pump operational parameter data, e.g. motor current
- A61M60/546—Regulation using real-time blood pump operational parameter data, e.g. motor current of blood flow, e.g. by adapting rotor speed
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/488—Diagnostic techniques involving Doppler signals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/52—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/5215—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data
- A61B8/5223—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data for extracting a diagnostic or physiological parameter from medical diagnostic data
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
- G16H50/30—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for calculating health indices; for individual health risk assessment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Clinical applications
- A61B8/0883—Clinical applications for diagnosis of the heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3375—Acoustical, e.g. ultrasonic, measuring means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/70—General characteristics of the apparatus with testing or calibration facilities
- A61M2205/702—General characteristics of the apparatus with testing or calibration facilities automatically during use
Definitions
- the invention relates to a method for determining the speed of sound in a fluid in the region of an implanted vascular support system, a system for determining the speed of sound in a fluid in the region of an implanted vascular support system and an implantable, vascular support system.
- the invention finds particular application in (fully) implanted left heart assist systems (LVAD).
- LVAD left heart assist systems
- An ultrasound Doppler measurement is suitable as a measuring method in which only a single ultrasound transducer is required as a transmitting and receiving element, which saves above all space in the implant.
- the flow velocity can be calculated by the frequency shift through the Doppler effect:
- the object of the invention is to specify a method and to provide a system with which the speed of sound in a fluid, in particular the speed of sound of blood in the region of an implanted, vascular support system can be determined.
- a method for determining the speed of sound in a fluid in the region of an implanted, vascular support system comprising the following steps:
- the vascular support system is preferably a cardiac support system, more preferably a ventricular assist system. Regularly, the support system serves to aid in the delivery of blood in the bloodstream of a human, and possibly patient.
- the Support system may be at least partially arranged in a blood vessel.
- the blood vessel is, for example, the aorta, in particular a left heart support system, or the common trunk (trunk pulmonalis) in the two pulmonary arteries, in particular in a right heart support system, preferably around the aorta.
- the support system is preferably located at the exit of the left ventricle of the heart or left ventricle. Particularly preferably, the support system is arranged in aortic valve position.
- the method is preferably for measuring the speed of sound in blood by means of ultrasound in a cardiac assist system.
- the method may be for determining a fluid flow rate and / or a fluid volume flow from a ventricle of a heart, in particular from a (left) ventricle of a heart to the aorta in the region of a (fully) implanted (left) ventricular (heart -) support system.
- the fluid is usually blood.
- the sound velocity is preferably determined in a fluid flow or fluid volume flow which flows through the support system.
- the method advantageously makes it possible to determine the speed of sound in the blood required for a (Doppler) measurement of the blood flow or flow rate, even outside the surgical scenario, with high quality, in particular by the implanted support system self.
- FMCW (frequency modulated approach) -based analysis algorithm allows the explicit determination of the speed of sound so that the accuracy of the Doppler-based blood flow measurement is not affected by any uncertainty in the speed of sound.
- the solution presented here is based, in particular, on supplementing a cardiac support system integrated Doppler volume flow sensor by one or more reflectors in a defined distance to the ultrasonic element, so that from the geometrically defined and known distance between the ultrasonic element and reflector and the measured pulse duration and / or beat frequency (so-called beat frequency) on the Sound velocity can be closed.
- an ultrasound signal is emitted by means of an ultrasound sensor.
- the ultrasound sensor preferably has an ultrasound element which, for example due to its oscillation, is designed to be able to emit one or more ultrasound signals.
- the ultrasonic element is a piezoelectric element.
- the ultrasonic sensor is preferably oriented so that an angle between the ultrasonic sound path and the main flow direction of the fluid is less than 5 °. It is also advantageous if the ultrasonic sensor is embodied in the manner of an ultrasound transducer which is set up both for transmitting and for receiving ultrasound signals, for example in that an ultrasound element can function as a transmitting and receiving element.
- the emitted ultrasonic signal can also be referred to as a transmission signal and generally has a specific frequency and / or amplitude.
- the transmission signal can also be pulsed or have at least one (in) pulse (in the pulse transit time approach).
- the transmission signal can be influenced by frequency modulation, in particular for the determination of beat frequencies (in the FMCW approach).
- the ultrasound signal is reflected on at least one sound reflector, which is in the field of view of the ultrasound sensor and at a (pre-) defined distance to the ultrasound sensor and / or to another sound (also arranged in the field of vision of the ultrasound sensor).
- Reflector is arranged.
- the field of view of the ultrasonic sensor is usually determined or clamped by its emission characteristic.
- the Sound reflector arranged circumferentially along an inner circumference of a flow channel of the support system.
- the at least one sound reflector projects at least partially into a flow path of the fluid or flow channel for the fluid through the support system. This flow path or channel can run, for example, through an (inlet) cannula or be formed by it.
- the at least one sound reflector rotates along an (inner) surface of the cannula.
- This defined distance between the ultrasonic sensor and the acoustic reflector is preferably in the range from 5 to 35 mm, in particular from 5 to 30 mm.
- the at least one sound reflector may have at least one air-filled cavity.
- the at least one sound reflector is preferably designed and / or aligned in such a way that it effects (only) a reflection or (only) reflection in the direction of the ultrasound sensor.
- the at least one sound reflector is set up and / or aligned in such a way that it reflects incident ultrasonic waves or signals, in particular directly and / or only towards the ultrasonic sensor.
- the at least one sound reflector is aligned so that a surface of the reflector is parallel to the incident ultrasonic wavefront.
- the at least one sound reflector is a separate component to the further components (eg channel inner wall) of the support system which come into contact with the fluid.
- the at least one sound reflector is attached or attached to a channel inner wall of the support system.
- the reflected ultrasound signal is received.
- the reflected ultrasound signal is received by means of the ultrasound sensor.
- the received ultrasound signal can also be referred to as receive signal.
- several reflected ultrasonic signals can also be received in step c).
- the speed of sound in the fluid is determined using the reflected ultrasound signal.
- the ultrasound signal can be evaluated or analyzed, for example, by means of an evaluation unit of the assistance system, in particular of the ultrasound sensor. In this case, a (pulse) runtime-based approach and / or a so-called FMCW-based approach can be exercised.
- the ultrasound signal is reflected at at least two sound reflectors, which are arranged at different distances from the ultrasound sensor.
- the two sound reflectors have a (pre-) defined distance from one another. This distance is preferably in the range of 1 to 10 mm.
- the use of at least two reflectors at different distances advantageously makes it possible to further increase the accuracy, in particular since this makes it possible to compensate for uncertainties in the speed of sound of the impedance matching layer of the ultrasound transducer as well as tissue deposits possibly present thereon.
- the at least one sound reflector has an acoustic impedance that is greater than the largest acoustic impedance of the fluid or less than the smallest acoustic impedance of the fluid.
- the at least one sound reflector has an acoustic impedance that differs from the acoustic impedance of the fluid by at least 5 MRayl. If several sound reflectors are provided, they may have the same acoustic impedance or different acoustic impedances from each other.
- the at least one sound reflector should have an acoustic impedance that is greater than the largest acoustic impedance of the fluid or less than the smallest acoustic impedance of the fluid.
- the at least one sound reflector preferably has an acoustic impedance in the range from 2 to 80 MRayl. Further preferred is the at least one acoustic reflector with one or more of the following materials formed: titanium, medical grade stainless steel z. MP35N, platinum-iridium, NiTiNol.
- the at least one sound reflector preferably has a reflection factor which is greater than the largest reflection factor of the fluid.
- a reflection factor of the sound reflector is understood in particular to be the reflection factor of the boundary layer between the material of the sound reflector and the fluid.
- a reflection factor of the fluid is understood to mean, in particular, the reflection factor of the boundary layer between blood cells and blood serum. If several sound reflectors are provided, they may have the same reflection factor or different reflection factors from each other. However, all existing sound reflectors should have a reflection factor that is greater than the largest reflection factor of the fluid.
- the reflection factor of the at least one sound reflector is in the range of 0.3 to 0.99.
- the at least one sound reflector is embedded in an embedding material.
- the potting material preferably has an acoustic impedance that substantially corresponds to the acoustic impedance of the fluid.
- a silicone may be used as the embedding material.
- the embedding material preferably surrounds at least partially, preferably completely, the surface of the acoustic reflector facing towards the fluid.
- the at least one sound reflector (by means of the embedding material) is embedded in a flat and / or smooth surface.
- the at least one sound reflector is embedded (by means of the embedding material) in a surface whose maximum pitch is smaller than the maximum pitch of the outer surface of the sound reflector.
- the sound velocity using a (pulse) runtime-based Evaluation algorithm is determined.
- the speed of sound is preferably determined as a function of the defined distance at least between the ultrasonic sensor and the sound reflector or between two sound reflectors and at least one (measured) signal propagation time.
- a cross-correlation in particular of the transmission pulse (pulse of the transmitted ultrasound signal) with the reception pulses (pulses of the received, reflected pulses reflected at the sound reflectors) delayed by the transit time (s), is particularly preferred. reflected ultrasound signals).
- the sound velocity is determined using an FMCW-based evaluation algorithm.
- FMCW stands for frequency-modulated continuous wave.
- the sound velocity is preferably determined as a function of the defined distance at least between the ultrasonic sensor and the sound reflector or between two sound reflectors, a change in a frequency of an ultrasonic signal and at least one (resulting) beat frequency.
- the speed of sound is determined as a function of the defined distance between the ultrasonic sensor and the sound reflector and / or between two sound reflectors, the slope of a frequency ramp and at least one (resulting) beat frequency.
- a beat frequency is determined in the case of or for the FMCW-based evaluation algorithm.
- the beat frequency can also be referred to as difference frequency and / or beat frequency.
- the beat frequency from a superposition of the of the Ultrasonic sensor emitted ultrasonic signal (transmission signal) with the received from the ultrasonic sensor reflected ultrasonic signal (received signal) determines.
- the number of dominant beat frequencies to be determined or determined corresponds to the number of (ultra) sound reflectors.
- a discrete Fourier transformation (DFT) or fast Fourier transformation (FFT) can be used to determine the beat frequency.
- a system for determining sound velocity in a fluid in the region of an implanted vascular support system comprising:
- At least one sound reflector which is arranged in the field of view of the ultrasound sensor and at a defined distance at least to the ultrasound sensor or to another sound reflector.
- At least two sound reflectors are arranged at different distances from the ultrasonic sensor. Furthermore, it is also preferred in the system when the at least one sound reflector is embedded in an embedding material.
- an evaluation unit in which a pulse duration-based evaluation algorithm is stored.
- an evaluation unit can be provided, in which an FMCW-based evaluation algorithm is stored.
- the evaluation unit is preferably part of the support system, in particular of the ultrasonic sensor. Further preferably, the evaluation unit is set up to carry out a method proposed here.
- the evaluation unit can have a memory in which the pulse duration-based evaluation algorithm and / or the FMCW-based evaluation algorithm is / are stored.
- the evaluation unit a Microprocessor, which can access the memory.
- the processing unit preferably receives data from an ultrasound element of the ultrasound sensor.
- an implantable vascular support system comprising a system for determining the speed of sound proposed herein.
- the support system is preferably a left ventricular cardiac assist system (LVAD) or a percutaneous, minimally invasive left ventricular assist system.
- LVAD left ventricular cardiac assist system
- this is preferably fully implantable.
- the support system is located completely in the body of the patient and remains there.
- the support system is set up or suitable for being able to be arranged at least partially in a ventricle, preferably the left ventricle of a heart and / or an aorta, in particular in the aortic valve position.
- the support system comprises a cannula, in particular inlet cannula and a turbomachine, such as a pump.
- the support system may further comprise an electric motor, which is regularly a part of the turbomachine.
- the (inlet) cannula is preferably arranged so that it can lead fluid in the implanted state from a (left) ventricle of a heart to the flow machine.
- the support system is preferably elongate and / or tubular.
- the inlet cannula and the turbomachine are arranged in the region of opposite ends of the support system.
- FIG. 2a is a detailed view of an implantable vascular support system
- FIG. 2b is a detailed view of another implantable vascular support system
- FIG. 4 shows an illustration of a system presented here
- FIG. 5 shows an illustration of a pulse transit time-based approach that can be used here
- FIG. 5 shows an illustration of a pulse transit time-based approach that can be used here
- Fig. 6 is an illustration of an FMCW-based one usable here
- FIG. 7 shows exemplary courses of real parts of impedances
- Fig. 8a is a detail view of a system presented here
- Fig. 8b is a detail view of another system presented here.
- Fig. 1 shows schematically a flow of a method presented here in a regular operation.
- the illustrated sequence of method steps a), b), c) and d) with the blocks 110, 120, 130 and 140 is merely exemplary.
- an ultrasound signal is emitted by means of an ultrasound sensor.
- the ultrasound signal is reflected on at least one sound reflector, which is arranged in the field of view of the ultrashort sensor and at a defined distance from the ultrasound sensor.
- the reflected ultrasound signal is received.
- the speed of sound in the fluid is determined using the reflected ultrasound signal.
- the method steps a), b), and c) can also run at least partially in parallel or at the same time.
- 2a schematically shows a detailed view of an implantable vascular support system 2.
- FIG. 2b schematically shows a detailed view of another implantable vascular support system 2.
- FIGS. 2a and 2b will be explained together below. The reference numbers are used uniformly.
- FIG. 2 a shows the integration into a left ventricular microaxial pump in the aortic valve position and, in FIG. 2 b, the integration into an apically placed radial support system 2.
- the flow direction of the fluid 1 is entered in Figures 2a and 2b by arrows.
- an ultrasonic sensor 4 is provided, which is arranged in or on the support system 2.
- the ultrasonic sensors 4 are exemplified in FIGS. 2a and 2b as ultrasonic transducers.
- circumferential sound reflectors 5 are provided, which are arranged in the field of view 6 of the ultrasonic sensor 4 and each at a defined distance 7 to the ultrasonic sensor 4.
- the flow channel can be formed in the interior of a (inlet) cannula (not shown here) of the support system 2.
- the detailed view according to FIG. 2 a shows a tip of a support system 2 accommodating the ultrasonic sensor 4 with a micro-axial pump (not shown here).
- a flow guide body 10 is placed here by way of example. This is not spaced apart from the ultrasound sensor 4 and is permeable to ultrasound signals.
- the fluid 1 flows here in the direction of the pump.
- the tip of the support system 2 shown in the detailed view according to FIG. 2 a can protrude into a ventricle (not shown here) of a heart in a preferred arrangement with the end shown here on the left, the pump at least partially in the aorta (not here) can be arranged). In this arrangement, the support system thus penetrates an aortic valve (not shown here).
- FIG. 2b The detailed view of Fig. 2b relates to a support system 2, which is also referred to as apical radial pump.
- the support system 2 has a turbomachine 1 1 (here pump), which discharges the fluid 1 in the radial direction as shown.
- FIG. 3 shows schematically a radiation characteristic 12 of an ultrasonic element (not shown here).
- FIG. 3 illustrates the field of view 6 of the ultrasound sensor (not shown here).
- a field of view width 13 and along the abscissa (x-axis) a field of view length 14 can be measured.
- the system comprises an ultrasound sensor 4 and two sound reflectors 5, which are arranged at different (defined) distance 7 from the ultrasound sensor 4.
- the reflectors 5 protrude into the fluid 1 by way of example.
- Each boundary layer between two acoustic impedances has a reflection factor at which a part of the sound energy is reflected in accordance with the quantity G.
- the slightly different acoustic impedance of red blood cells and blood serum provides the reflected signal, which is usually used to calculate the Doppler frequency shift, from which the flow rate of the blood can be determined.
- An (additional) reflector proposed here should preferably have the highest possible reflec- tion factor, which can be achieved in particular by an impedance mismatch with the blood, ie the acoustic impedance of the reflector should differ as clearly as possible from blood, for example by the reflector from an air-filled reflector Cavity or a metal is executed.
- the method with only one reflector 5 can be faulty as soon as there is more than one unknown medium between the ultrasonic sensor 4 and the reflector 5.
- the acoustic impedance (formula symbol: Zwi) and thus the speed of sound (symbol: Ci) of the matching layers 15 could change over the years due to water diffusion or it could lead to deposits 16 of cell layers (with their own acoustic impedance Zw 2 and sonic velocity C 2 ) on the ultrasonic sensor 4, so that an additional material layer of unknown thickness and / or unknown speed of sound is formed, as is illustrated in more detail in FIG. 4.
- the differing sound velocities of the various media are entered by way of example in FIG. 4, namely the speed of sound Ci of the adaptation layers 15, the speed of sound C 2 of the deposits 16 and the speed of sound C3 of the fluid 1 (here: blood).
- FIG. 5 schematically shows an illustration of a pulse duration-based approach that can be used here.
- the pulse transit time-based approach reference will also be made to the depiction of the system according to FIG. 4.
- the pulse transit time of the ultrasonic sensor 4 to the reflector 5 and back to the ultrasonic sensor 4 calculate. Since the mechanical structure of the (cardiac) support system 2 and thus the (defined) distance 7 between the ultrasound sensor 4 and the reflector 5 are known, it is possible according to the formula with the known (defined) distance 7 between the ultrasonic sensor 4 and the reflector 5 and t of the measured signal propagation time, the sought sound velocity c can be determined.
- the sound velocity C 3 can be determined independently of the influence of additional layers between the ultrasonic sensor 4 and the reflector 5.
- One possibility for determining the transit times t Ri and t R2 or t Ri -t R2 is the calculation of the cross-correlation 17 of the transmit pulse 3 (pulse of the transmitted ultrasound signal 3) with the delays delayed by the transit times t Ri or t R2 , at the ultrasonic reflectors 5 reflected receiving pulses 8 (pulses of the received, reflected ultrasonic signals 8).
- the time-discrete cross-correlation 17 can be calculated for energy signal as follows: With R xy [n] the discrete cross-correlation at time n, the operator "star” as shorthand for the cross-correlation, x * [m] the conjugate complex transmission signal over all time shifts m and y [m + n] the received signal at time n all time shifts m.
- FIG. 5 shows by way of example the result of this calculation.
- the pulse of the emitted ultrasonic signal 3 the pulses of the received, reflected ultrasonic signals 8 and the (time-discrete) cross-correlation 17 are plotted against time 18. From the distance between z. B. the two peaks (peaks) in the cross-correlation signal 17 can - after the recalculation of the discrete time steps - the time interval t Ri - t R2 are determined.
- Fig. 6 shows schematically an illustration of an FMCW-based approach which can be used here. In order to explain the illustration according to FIG. 6 or the FMCW-based approach, reference is also made to the illustration of the system according to FIG. 4.
- the (ultra) sound reflectors 5 represent, in particular because of their high reflection factor, the dominant targets in the emission area of the ultrasonic sensor 4. Therefore, their beat frequencies (so-called beat frequencies) can be clearly recognized in the calculated spectrum. Since the mechanical structure of the (cardiac) support system and thus the distance between the ultrasound sensor 4 and the reflector 5 (symbol x) is known, the formula
- the resulting beat frequency (beating frequency) in the baseband, the desired Schalgeschwindig- speed c are determined.
- the reflectors 5 are fixed in place, the resulting beat frequency is influenced only by their distance from the ultrasound sensor 4 and the corresponding transit time of the frequency ramp in the fluid (here: blood) and, in particular, contains no speed-dependent component.
- the beat frequency f beat.Ri is accordingly the frequency ramp reflected at the first reflector and the beat frequency fbeat, R2 of the frequency ramp reflected at the second reflector with S1 the thickness of the matching layers 15, S2 the thickness of the deposits 16, S3 the distance between deposits 16 and the first (left) reflector 5 and s 4 the distance between the first (left) reflector 5 and second (right) reflector fifth and with Ci the speed of sound in the matching layers 15, C2 the speed of sound in the deposits 16, C3 the speed of sound in the fluid 1 (here: blood).
- the speed of sound C3 can be determined independently of the influence of additional layers between the ultrasonic sensor 4 and the reflector 5.
- the ultrasonic frequency f o is hereby influenced by frequency modulation as an example. Sinusoidal, sawtooth, triangular or rectangular modulation types can be used. It is particularly preferable if the ultrasonic sensor or the ultrasonic element of the sensor provides a broadband resonance and that the ramp duration (symbol: T) much larger than the running time (so-called "time of flight") of the frequency ramps from the ultrasonic sensor 4 (ultrasonic transducer or transducer) to the (ultra) sound reflectors 5 and back again. The echoes of the successively transmitted, modulated ultrasonic frequency ramps reflected at the reflectors 5 are mixed down (superimposed) with the instantaneous transmission frequency ramp. The baseband signal thus generated contains the beat frequencies to be determined. These are transformed by the transformation into the frequency range z. As determined by discrete Fourier transform (DFT) or fast Fourier transformation (FFT).
- DFT discrete Fourier transform
- FFT fast Fourier transformation
- FIG. 6 a possible implementation of the above-described FMCW-based approach by means of sawtooth modulation is shown.
- the course of the frequency 19 over the time 18 is plotted.
- both the ultrasound signal 3 (transmission signal) emitted by the ultrasound sensor and the reflected ultrasound signals 8 (reception signals) received by the ultrasound sensor are shaped in the manner of a sawtooth.
- three are applied to the transmission signal 3 and mutually shifted reception signals 8, which would be the case, for example, if three ultrasound reflectors arranged at different distances from the ultrasound sensor were used.
- the FMCW approach regularly uses a periodic frequency modulation, here periodic sawtooth modulation, which should be as linear as possible in order to achieve a high degree of accuracy in the measurement.
- the modulation is usually carried out cyclically.
- Such a passage from the lowest to the highest frequency is also called a burst (so-called burst).
- the duration of a corresponding passage is entered in the upper diagram of FIG. 6 as a so-called chirp duration (chirp duration) 22.
- chirp duration 23 is marked.
- the ultrasonic sensor transmits here by way of example a linearly frequency-modulated signal with a sawtooth-shaped change of the transmission frequency 3. The same signal is received by the ultrasonic sensor after reflection on one of the ultrasonic reflectors.
- the received signal 8 differs once in time, wherein the time difference 21 between the frequency jumps is usually proportional to the distance of the reflecting ultrasonic I-reflector from the ultrasonic sensor.
- the difference frequency 20 between the transmission signal 3 and the reception signal 8 is the same at every point in time and is therefore also a measure of the distance of the reflecting ultrasonic reflector. This frequency difference can be evaluated in particular in the frequency domain.
- a frequency spectrum 25 is generated here, for example, by Fieruntermixing / multiplication with the instantaneous transmission signal and by means of downstream fast Fourier transformation 24, in which the difference frequencies 20 are entered in addition to the background noise 26 are.
- this is a multiplication of the received signal with the instantaneous transmission signal and subsequent Fourier transformation of the baseband time signal, from which the difference frequencies 20 result, which are also referred to here as beat frequencies or beat frequencies.
- the particularly advantageous linearity can be achieved over the desired frequency band.
- real parts 27 of the impedances of 8 MFIz piezo elements are plotted as an example over the stimulation frequency 28.
- FIG. 8a shows schematically a detail view of a system presented here.
- Fig. 8b shows schematically a detailed view of another system presented here.
- FIGS. 8a and 8b will be explained together below.
- the reference numerals are used uniformly.
- the surface of the reflector should be parallel to the incident ultrasonic wavefront. Since uneven surfaces such as applied reflectors can cause turbulence in the flow (disadvantageous for the Doppler ultrasound measurement), the formation of thrombi as well as by occurring shear forces to additional blood damage (flaemolysis), it is expedient, the reflectors 5 with to embed an embedding material 9, as exemplified in Figures 8a and 8b.
- the embedding material 9 is used here by way of example to provide a surface which is smoother in comparison to the reflector surface or a surface without corners and / or edges. It is particularly preferred, the to embed at least one reflector 5, in particular by means of the embedding material 9 in a flat surface.
- the embedding material 9 should have an acoustic impedance that is as similar as possible to the fluid 1 (here: blood) and should be as thin as possible, so that no additional reflections or diffractions of the sound impulse occur, unless this additional diffraction is desired.
- the or each reflector 5 with acoustic impedance C 4 can be embedded in a silicone with acoustic impedance C 3 ' , where C 3' is similar to the acoustic impedance C 3 of blood.
- the solution presented here enables one or more of the following advantages:
- the speed of sound can be determined from the resulting pulse transit time and / or ramp runtime by the reflector.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Cardiology (AREA)
- Physiology (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Mechanical Engineering (AREA)
- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
- Epidemiology (AREA)
- Primary Health Care (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018208899.3A DE102018208899A1 (de) | 2018-06-06 | 2018-06-06 | Verfahren zum Ermitteln der Schallgeschwindigkeit in einem Fluid im Bereich eines implantierten, vaskulären Unterstützungssystems |
| PCT/EP2019/064803 WO2019234163A1 (de) | 2018-06-06 | 2019-06-06 | Verfahren und system zum ermitteln der schallgeschwindigkeit in einem fluid im bereich eines implantierten, vaskulären unterstützungssystems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3801281A1 true EP3801281A1 (de) | 2021-04-14 |
Family
ID=66794008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19729271.7A Pending EP3801281A1 (de) | 2018-06-06 | 2019-06-06 | Verfahren und system zum ermitteln der schallgeschwindigkeit in einem fluid im bereich eines implantierten, vaskulären unterstützungssystems |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US12311160B2 (de) |
| EP (1) | EP3801281A1 (de) |
| JP (1) | JP7387180B2 (de) |
| CN (1) | CN112533543B (de) |
| DE (1) | DE102018208899A1 (de) |
| WO (1) | WO2019234163A1 (de) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018208538A1 (de) | 2018-05-30 | 2019-12-05 | Kardion Gmbh | Intravasale Blutpumpe und Verfahren zur Herstellung von elektrischen Leiterbahnen |
| DE102018208945A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Analysevorrichtung und Verfahren zum Analysieren einer Viskosität eines Fluids |
| DE102018208899A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Verfahren zum Ermitteln der Schallgeschwindigkeit in einem Fluid im Bereich eines implantierten, vaskulären Unterstützungssystems |
| DE102018208929A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Verfahren zur Bestimmung einer Strömungsgeschwindigkeit eines durch ein implantiertes, vaskuläres Unterstützungssystem strömenden Fluids |
| DE102018208933A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Verfahren zur Bestimmung einer Strömungsgeschwindigkeit eines durch ein implantiertes, vaskuläres Unterstützungssystem strömenden Fluids |
| DE102018208892A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Sensorkopfvorrichtung für ein minimalinvasives Herzunterstützungssystem und Verfahren zum Herstellen einer Sensorkopfvorrichtung für ein Herzunterstützungssystem |
| DE102018208913A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Verfahren zum Betreiben eines implantierten, ventrikulären Unterstützungssystems |
| DE102018208879A1 (de) | 2018-06-06 | 2020-01-30 | Kardion Gmbh | Verfahren zur Bestimmung eines Fluid-Gesamtvolumenstroms im Bereich eines implantierten, vaskuläres Unterstützungssystems |
| DE102018208936A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Bestimmvorrichtung und Verfahren zum Bestimmen einer Viskosität eines Fluids |
| DE102018208862A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Implantierbares, vaskuläres Unterstützungssystem |
| DE102018208870A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Verfahren zur Bestimmung eines Fluid-Volumenstroms durch ein implantiertes, vaskuläres Unterstützungssystem |
| DE102018210076A1 (de) | 2018-06-21 | 2019-12-24 | Kardion Gmbh | Verfahren und Vorrichtung zum Erkennen eines Verschleißzustands eines Herzunterstützungssystems, Verfahren und Vorrichtung zum Betreiben eines Herzunterstützungssystems und Herzunterstützungssystem |
| LU100993B1 (de) * | 2018-11-09 | 2020-05-11 | Visseiro Gmbh | Sensoroberfläche |
| CA3199214A1 (en) | 2020-11-20 | 2022-05-27 | Marvin MITZE | Mechanical circulatory support system with insertion tool |
| US20230173250A1 (en) | 2021-12-03 | 2023-06-08 | Kardion Gmbh | Cardiac pump with optical fiber for laser doppler |
| US20240011808A1 (en) | 2022-07-11 | 2024-01-11 | Kardion Gmbh | Laser doppler velocimetry flow measurement |
Family Cites Families (587)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3088323A (en) | 1960-02-10 | 1963-05-07 | Gulton Ind Inc | Piezoresistive transducer |
| US4023562A (en) | 1975-09-02 | 1977-05-17 | Case Western Reserve University | Miniature pressure transducer for medical use and assembly method |
| US4103679A (en) * | 1977-03-22 | 1978-08-01 | Biosonics, Inc. | Method and apparatus for measuring blood flow noninvasively |
| NO150015C (no) | 1981-11-13 | 1984-08-08 | Vingmed As | Fremgangsmaate ved blodstroemhastighetsmaaling med ultralyd, kombinert med ekko-amplitudeavbildning, for undersoekelse av levende biologiske strukturer |
| JPS5980229A (ja) | 1982-10-29 | 1984-05-09 | 株式会社島津製作所 | パルスドツプラ−超音波血流計 |
| JPS6015771A (ja) | 1983-07-08 | 1985-01-26 | Hitachi Ltd | ベクトルプロセッサ |
| JPS61125329A (ja) | 1984-11-21 | 1986-06-13 | テルモ株式会社 | 心拍出量測定装置 |
| JPS62113555A (ja) | 1985-11-13 | 1987-05-25 | Canon Inc | インクジエツト記録装置 |
| JPS62204733A (ja) | 1986-03-04 | 1987-09-09 | アロカ株式会社 | 超音波ドプラ診断装置 |
| JPS62282284A (ja) * | 1986-05-30 | 1987-12-08 | Tokyo Keiki Co Ltd | 超音波による距離測定方法およびその装置 |
| US4902272A (en) | 1987-06-17 | 1990-02-20 | Abiomed Cardiovascular, Inc. | Intra-arterial cardiac support system |
| US4781525A (en) | 1987-07-17 | 1988-11-01 | Minnesota Mining And Manufacturing Company | Flow measurement system |
| JPS6468236A (en) | 1987-09-07 | 1989-03-14 | Aisin Seiki | Cannula equipped with detection electrode |
| US4889131A (en) | 1987-12-03 | 1989-12-26 | American Health Products, Inc. | Portable belt monitor of physiological functions and sensors therefor |
| US4888011A (en) | 1988-07-07 | 1989-12-19 | Abiomed, Inc. | Artificial heart |
| US4965713A (en) | 1988-08-15 | 1990-10-23 | Viking Pump Inc. | Terminal element |
| US4989609A (en) | 1989-01-26 | 1991-02-05 | Minnesota Mining And Manufacturing Company | Doppler blood flow system and method using special zero flow rate analysis |
| US5045051A (en) | 1989-03-14 | 1991-09-03 | Abiomed, Inc. | Leak detector |
| CA2004295C (en) | 1989-11-30 | 1998-02-10 | William F. Hayes | Primary fluid actuated, secondary fluid propelling system |
| AU1279092A (en) | 1991-02-04 | 1992-10-06 | Kensey Nash Corporation | Apparatus and method for determining viscosity of the blood of a living being |
| JP2952438B2 (ja) | 1991-09-20 | 1999-09-27 | トキコ株式会社 | 熱式流量計 |
| US5676651A (en) | 1992-08-06 | 1997-10-14 | Electric Boat Corporation | Surgically implantable pump arrangement and method for pumping body fluids |
| JP3312759B2 (ja) | 1993-01-22 | 2002-08-12 | テルモ株式会社 | 医療用ポンプ駆動装置 |
| US5456715A (en) | 1993-05-21 | 1995-10-10 | Liotta; Domingo S. | Implantable mechanical system for assisting blood circulation |
| US5289821A (en) | 1993-06-30 | 1994-03-01 | Swartz William M | Method of ultrasonic Doppler monitoring of blood flow in a blood vessel |
| JPH0747025A (ja) | 1993-08-06 | 1995-02-21 | Itoki Co Ltd | フレキシブルパ−ティション |
| US5527159A (en) | 1993-11-10 | 1996-06-18 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Rotary blood pump |
| GB9404321D0 (en) | 1994-03-04 | 1994-04-20 | Thoratec Lab Corp | Driver and method for driving pneumatic ventricular assist devices |
| US5581038A (en) | 1994-04-04 | 1996-12-03 | Sentir, Inc. | Pressure measurement apparatus having a reverse mounted transducer and overpressure guard |
| NO942222D0 (no) | 1994-06-14 | 1994-06-14 | Vingmed Sound As | Fremgangsmåte ved bestemmelse av hastighet/tid-spektrum ved blodströmning |
| JPH0857042A (ja) | 1994-08-24 | 1996-03-05 | Terumo Corp | 医療用ポンプ |
| US5685989A (en) * | 1994-09-16 | 1997-11-11 | Transonic Systems, Inc. | Method and apparatus to measure blood flow and recirculation in hemodialysis shunts |
| US5453576A (en) | 1994-10-24 | 1995-09-26 | Transonic Systems Inc. | Cardiovascular measurements by sound velocity dilution |
| US5613935A (en) | 1994-12-16 | 1997-03-25 | Jarvik; Robert | High reliability cardiac assist system |
| JPH08327527A (ja) | 1995-05-31 | 1996-12-13 | Toyobo Co Ltd | 細管式粘度計 |
| US5752976A (en) | 1995-06-23 | 1998-05-19 | Medtronic, Inc. | World wide patient location and data telemetry system for implantable medical devices |
| US5720771A (en) | 1995-08-02 | 1998-02-24 | Pacesetter, Inc. | Method and apparatus for monitoring physiological data from an implantable medical device |
| GB9604665D0 (en) | 1996-03-05 | 1996-05-01 | Montec Int Ltd | Flow measurement |
| US5980465A (en) | 1996-03-18 | 1999-11-09 | Medtronic, Inc. | Method for detecting changes in a patient s blood volume |
| US5911685A (en) | 1996-04-03 | 1999-06-15 | Guidant Corporation | Method and apparatus for cardiac blood flow assistance |
| JPH1052489A (ja) | 1996-08-12 | 1998-02-24 | Buaayu:Kk | カニューレ及び補助循環装置 |
| US5888242A (en) | 1996-11-01 | 1999-03-30 | Nimbus, Inc. | Speed control system for implanted blood pumps |
| ES2208963T3 (es) | 1997-01-03 | 2004-06-16 | Biosense, Inc. | Endoprotesis vascular sensible a la presion. |
| US5957861A (en) | 1997-01-31 | 1999-09-28 | Medtronic, Inc. | Impedance monitor for discerning edema through evaluation of respiratory rate |
| US5964694A (en) | 1997-04-02 | 1999-10-12 | Guidant Corporation | Method and apparatus for cardiac blood flow assistance |
| CN1222862A (zh) | 1997-04-02 | 1999-07-14 | 激励心脏技术有限公司 | 心内泵装置 |
| US5865759A (en) | 1997-04-11 | 1999-02-02 | Texon Technologies Ltd. | Method and apparatus for non-invasive assessment of cardiac function by monitoring acceleration of the heart |
| US5827203A (en) | 1997-04-21 | 1998-10-27 | Nita; Henry | Ultrasound system and method for myocardial revascularization |
| US6731976B2 (en) | 1997-09-03 | 2004-05-04 | Medtronic, Inc. | Device and method to measure and communicate body parameters |
| JP2001517495A (ja) | 1997-09-24 | 2001-10-09 | ザ クリーブランド クリニック ファウンデーション | 流量制御された血液ポンプシステム |
| DE69836495T3 (de) | 1997-10-02 | 2015-08-06 | Micromed Technology, Inc. | Steuermodul für implantierbares Pumpsystem |
| US6610004B2 (en) | 1997-10-09 | 2003-08-26 | Orqis Medical Corporation | Implantable heart assist system and method of applying same |
| US6398734B1 (en) | 1997-10-14 | 2002-06-04 | Vascusense, Inc. | Ultrasonic sensors for monitoring the condition of flow through a cardiac valve |
| US6007478A (en) | 1997-11-13 | 1999-12-28 | Impella Cardiotechnik Aktiengesellschaft | Cannula having constant wall thickness with increasing distal flexibility and method of making |
| US6314322B1 (en) | 1998-03-02 | 2001-11-06 | Abiomed, Inc. | System and method for treating dilated cardiomyopathy using end diastolic volume (EDV) sensing |
| US5904708A (en) | 1998-03-19 | 1999-05-18 | Medtronic, Inc. | System and method for deriving relative physiologic signals |
| CN1192351A (zh) | 1998-03-26 | 1998-09-09 | 王明时 | 血粘度快速测量仪 |
| US6176822B1 (en) | 1998-03-31 | 2001-01-23 | Impella Cardiotechnik Gmbh | Intracardiac blood pump |
| US6023641A (en) | 1998-04-29 | 2000-02-08 | Medtronic, Inc. | Power consumption reduction in medical devices employing multiple digital signal processors |
| US6024704A (en) | 1998-04-30 | 2000-02-15 | Medtronic, Inc | Implantable medical device for sensing absolute blood pressure and barometric pressure |
| DE19821307C1 (de) | 1998-05-13 | 1999-10-21 | Impella Cardiotech Gmbh | Intrakardiale Blutpumpe |
| US7083588B1 (en) | 1998-05-26 | 2006-08-01 | Medtronic Vascular, Inc. | Apparatus for providing coronary retroperfusion and methods of use |
| US6575927B1 (en) | 1998-09-25 | 2003-06-10 | The Regents Of The University Of Michigan | System and method for determining blood flow rate in a vessel |
| US6167765B1 (en) | 1998-09-25 | 2001-01-02 | The Regents Of The University Of Michigan | System and method for determining the flow rate of blood in a vessel using doppler frequency signals |
| DE29821563U1 (de) | 1998-12-02 | 2000-07-13 | Impella Cardiotechnik AG, 52074 Aachen | Drucksensor |
| US6245007B1 (en) | 1999-01-28 | 2001-06-12 | Terumo Cardiovascular Systems Corporation | Blood pump |
| US6210318B1 (en) | 1999-03-09 | 2001-04-03 | Abiomed, Inc. | Stented balloon pump system and method for using same |
| US6438409B1 (en) | 1999-03-25 | 2002-08-20 | Medtronic, Inc. | Methods of characterizing ventricular operations and applications thereof |
| IT1315206B1 (it) | 1999-04-27 | 2003-02-03 | Salvatore Romano | Metodo e apparato per la misura della portata cardiaca. |
| US6190324B1 (en) | 1999-04-28 | 2001-02-20 | Medtronic, Inc. | Implantable medical device for tracking patient cardiac status |
| AUPQ090499A0 (en) | 1999-06-10 | 1999-07-01 | Peters, William S | Heart assist device and system |
| US6890329B2 (en) | 1999-06-15 | 2005-05-10 | Cryocath Technologies Inc. | Defined deflection structure |
| EP1063753B1 (de) | 1999-06-22 | 2009-07-22 | Levitronix LLC | Elektrischer Drehantrieb mit einem magnetisch gelagerten Rotor |
| US6231498B1 (en) | 1999-06-23 | 2001-05-15 | Pulsion Medical Systems Ag | Combined catheter system for IABP and determination of thermodilution cardiac output |
| US7138776B1 (en) | 1999-07-08 | 2006-11-21 | Heartware, Inc. | Method and apparatus for controlling brushless DC motors in implantable medical devices |
| US6512949B1 (en) | 1999-07-12 | 2003-01-28 | Medtronic, Inc. | Implantable medical device for measuring time varying physiologic conditions especially edema and for responding thereto |
| US7022100B1 (en) | 1999-09-03 | 2006-04-04 | A-Med Systems, Inc. | Guidable intravascular blood pump and related methods |
| AU7354400A (en) | 1999-09-03 | 2001-04-10 | A-Med Systems, Inc. | Guidable intravascular blood pump and related methods |
| US6579257B1 (en) | 1999-09-21 | 2003-06-17 | Medtronic, Inc. | Automated occlusion clamp for centrifugal blood pumps |
| US20010039828A1 (en) | 1999-11-12 | 2001-11-15 | Visco Technologies, Inc. | Mass detection capillary viscometer |
| EP1123687A3 (de) | 2000-02-10 | 2004-02-04 | Aloka Co., Ltd. | Diagnostisches Ultraschallgerät |
| US6406422B1 (en) | 2000-03-02 | 2002-06-18 | Levram Medical Devices, Ltd. | Ventricular-assist method and apparatus |
| US6561975B1 (en) | 2000-04-19 | 2003-05-13 | Medtronic, Inc. | Method and apparatus for communicating with medical device systems |
| US6432136B1 (en) | 2000-04-25 | 2002-08-13 | The Penn State Research Foundation | Apparatus and method for removing a pocket of air from a blood pump |
| US6530876B1 (en) | 2000-04-25 | 2003-03-11 | Paul A. Spence | Supplemental heart pump methods and systems for supplementing blood through the heart |
| US6540658B1 (en) | 2000-05-30 | 2003-04-01 | Abiomed, Inc. | Left-right flow control algorithm in a two chamber cardiac prosthesis |
| DE10040403A1 (de) | 2000-08-18 | 2002-02-28 | Impella Cardiotech Ag | Intrakardiale Blutpumpe |
| IL138073A0 (en) | 2000-08-24 | 2001-10-31 | Glucon Inc | Photoacoustic assay and imaging system |
| US6808508B1 (en) | 2000-09-13 | 2004-10-26 | Cardiacassist, Inc. | Method and system for closed chest blood flow support |
| GB0023412D0 (en) | 2000-09-23 | 2000-11-08 | Khaghani Asghar | Aortic counterpulsator |
| US6540659B1 (en) | 2000-11-28 | 2003-04-01 | Abiomed, Inc. | Cardiac assistance systems having bi-directional pumping elements |
| US6602182B1 (en) | 2000-11-28 | 2003-08-05 | Abiomed, Inc. | Cardiac assistance systems having multiple fluid plenums |
| DE10059714C1 (de) | 2000-12-01 | 2002-05-08 | Impella Cardiotech Ag | Intravasale Pumpe |
| DE10060275A1 (de) | 2000-12-05 | 2002-06-13 | Impella Cardiotech Ag | Verfahren zum Kalibrieren eines Drucksensors oder eines Flussensors an einer Rotationspumpe |
| US6912423B2 (en) | 2000-12-15 | 2005-06-28 | Cardiac Pacemakers, Inc. | Terminal connector assembly for a medical device and method therefor |
| US20020147495A1 (en) | 2001-04-09 | 2002-10-10 | Christopher Petroff | Reduced-size replacement heart |
| DE10123139B4 (de) | 2001-04-30 | 2005-08-11 | Berlin Heart Ag | Verfahren zur Regelung einer Unterstützungspumpe für Fluidfördersysteme mit pulsatilem Druck |
| US6511413B2 (en) | 2001-05-16 | 2003-01-28 | Levram Medical Devices, Ltd. | Single cannula ventricular-assist method and apparatus |
| US6879126B2 (en) | 2001-06-29 | 2005-04-12 | Medquest Products, Inc | Method and system for positioning a movable body in a magnetic bearing system |
| JP3882069B2 (ja) | 2001-07-06 | 2007-02-14 | 独立行政法人産業技術総合研究所 | 人工心臓用ポンプの異常判定方法及び異常判定装置 |
| US7191000B2 (en) | 2001-07-31 | 2007-03-13 | Cardiac Pacemakers, Inc. | Cardiac rhythm management system for edema |
| JP4440499B2 (ja) | 2001-08-29 | 2010-03-24 | 泉工医科工業株式会社 | 遠心ポンプ駆動装置 |
| DE10144269A1 (de) | 2001-09-08 | 2003-03-27 | Bosch Gmbh Robert | Sensorelement zur Erfassung einer physikalischen Messgröße zwischen tribologisch hoch beanspruchten Körpern |
| US6666826B2 (en) | 2002-01-04 | 2003-12-23 | Cardiac Pacemakers, Inc. | Method and apparatus for measuring left ventricular pressure |
| US7396327B2 (en) | 2002-01-07 | 2008-07-08 | Micromed Technology, Inc. | Blood pump system and method of operation |
| CN101816811A (zh) | 2002-01-07 | 2010-09-01 | 麦克罗美德技术公司 | 泵系统 |
| CA2471484A1 (en) | 2002-01-08 | 2003-07-17 | Micromed Technology, Inc. | Method and system for detecting ventricular collapse |
| DK2298370T3 (da) | 2002-02-21 | 2014-01-27 | Design Mentor Inc | Fluidpumpe |
| US7238151B2 (en) | 2002-02-26 | 2007-07-03 | Frazier O Howard | Permanent heart assist system |
| US6669624B2 (en) | 2002-03-26 | 2003-12-30 | O. Howard Frazier | Temporary heart-assist system |
| US10155082B2 (en) | 2002-04-10 | 2018-12-18 | Baxter International Inc. | Enhanced signal detection for access disconnection systems |
| US6991595B2 (en) | 2002-04-19 | 2006-01-31 | Thoratec Corporation | Adaptive speed control for blood pump |
| US6969369B2 (en) | 2002-04-22 | 2005-11-29 | Medtronic, Inc. | Implantable drug delivery system responsive to intra-cardiac pressure |
| US7024244B2 (en) | 2002-04-22 | 2006-04-04 | Medtronic, Inc. | Estimation of stroke volume cardiac output using an intracardiac pressure sensor |
| DE10226305C1 (de) | 2002-06-13 | 2003-10-30 | Infratec Gmbh Infrarotsensorik | Durchstimmbares, schmalbandiges Bandpassfilter für die Infrarot-Messtechnik |
| DE10227918A1 (de) | 2002-06-21 | 2004-01-15 | Bühler AG | Verfahren zum Bestimmen rheologischer Parameter eines Fluids |
| AU2003238656A1 (en) * | 2002-06-25 | 2004-01-06 | Glucon Inc. | Method and apparatus for performing myocardial revascularization |
| US6949066B2 (en) | 2002-08-21 | 2005-09-27 | World Heart Corporation | Rotary blood pump diagnostics and cardiac output controller |
| AU2002951685A0 (en) | 2002-09-30 | 2002-10-17 | Ventrassist Pty Ltd | Physiological demand responsive control system |
| US6943434B2 (en) | 2002-10-03 | 2005-09-13 | Fairchild Semiconductor Corporation | Method for maintaining solder thickness in flipchip attach packaging processes |
| US7207939B2 (en) | 2002-10-03 | 2007-04-24 | Coulter International Corp. | Apparatus and method for analyzing a liquid in a capillary tube of a hematology instrument |
| US7204798B2 (en) | 2003-01-24 | 2007-04-17 | Proteus Biomedical, Inc. | Methods and systems for measuring cardiac parameters |
| EP1592344A4 (de) | 2003-01-31 | 2006-08-16 | Univ Leland Stanford Junior | Nachweis von spitzenbewegung zur überwachung der herzfunktion |
| US6887207B2 (en) | 2003-02-26 | 2005-05-03 | Medtronic, Inc. | Methods and apparatus for estimation of ventricular afterload based on ventricular pressure measurements |
| US20040199052A1 (en) | 2003-04-01 | 2004-10-07 | Scimed Life Systems, Inc. | Endoscopic imaging system |
| CN1202871C (zh) | 2003-04-18 | 2005-05-25 | 清华大学 | 微型轴流式血泵的优化非恒速控制方法 |
| US7118525B2 (en) | 2003-04-23 | 2006-10-10 | Coleman Edward J | Implantable cardiac assist device |
| US20040241019A1 (en) | 2003-05-28 | 2004-12-02 | Michael Goldowsky | Passive non-contacting smart bearing suspension for turbo blood-pumps |
| US20080262289A1 (en) | 2003-05-28 | 2008-10-23 | Goldowsky Michael P | Blood Pump Having A Passive Non-Contacting Bearing Suspension |
| US7078796B2 (en) | 2003-07-01 | 2006-07-18 | Freescale Semiconductor, Inc. | Corrosion-resistant copper bond pad and integrated device |
| US7128538B2 (en) | 2003-07-07 | 2006-10-31 | Terumo Corporation | Centrifugal fluid pump apparatus |
| AU2003903726A0 (en) | 2003-07-18 | 2003-07-31 | Ventracor Limited | A device for detecting heart pumping state |
| US7951129B2 (en) | 2003-08-07 | 2011-05-31 | Medtronic, Inc. | Diastolic coronary perfusion detection for timed delivery of therapeutic and/or diagnostic agents |
| DE10336902C5 (de) | 2003-08-08 | 2019-04-25 | Abiomed Europe Gmbh | Intrakardiale Pumpvorrichtung |
| US7245117B1 (en) | 2004-11-01 | 2007-07-17 | Cardiomems, Inc. | Communicating with implanted wireless sensor |
| US7559894B2 (en) * | 2003-09-18 | 2009-07-14 | New Paradigm Concepts, LLC | Multiparameter whole blood monitor and method |
| US20140296677A1 (en) | 2003-09-18 | 2014-10-02 | New Paradigm Concepts, LLC | Method of measuring total vascular hemoglobin mass |
| US20050137614A1 (en) | 2003-10-08 | 2005-06-23 | Porter Christopher H. | System and method for connecting implanted conduits |
| US8428717B2 (en) | 2003-10-14 | 2013-04-23 | Medtronic, Inc. | Method and apparatus for monitoring tissue fluid content for use in an implantable cardiac device |
| AU2004284842B2 (en) | 2003-10-31 | 2010-03-04 | Nuwellis, Inc. | Synchronisation control system |
| US7520850B2 (en) | 2003-11-19 | 2009-04-21 | Transoma Medical, Inc. | Feedback control and ventricular assist devices |
| WO2005054811A2 (en) | 2003-11-26 | 2005-06-16 | Separation Technology, Inc. | Method and apparatus for ultrasonic determination of hematocrit and hemoglobin concentrations |
| JP2005192687A (ja) | 2003-12-29 | 2005-07-21 | Sunao Kitamura | 回転型人工心臓ポンプを用いた部分補助における圧・流量・自然心拍出量の間接計測法 |
| JP2005241546A (ja) | 2004-02-27 | 2005-09-08 | Fuji Electric Systems Co Ltd | ドップラー式超音波流量計、その演算処理装置、プログラム |
| US11832793B2 (en) | 2004-03-23 | 2023-12-05 | Boston Scientific Scimed, Inc. | Vivo visualization system |
| US7160243B2 (en) | 2004-03-25 | 2007-01-09 | Terumo Corporation | Method and system for controlling blood pump flow |
| US7591777B2 (en) | 2004-05-25 | 2009-09-22 | Heartware Inc. | Sensorless flow estimation for implanted ventricle assist device |
| US7513864B2 (en) | 2004-07-09 | 2009-04-07 | Kantrowitz Allen B | Synchronization system between aortic valve and cardiac assist device |
| WO2006006163A2 (en) | 2004-07-12 | 2006-01-19 | Coreolis Inc. | Apparatus and method for multiple organ assist |
| US20070299325A1 (en) | 2004-08-20 | 2007-12-27 | Brian Farrell | Physiological status monitoring system |
| WO2006029216A2 (en) | 2004-09-07 | 2006-03-16 | Micromed Cardiovascular, Inc. | Method and system for physiologic control of a blood pump |
| WO2006049538A1 (en) | 2004-11-02 | 2006-05-11 | St. Jude Medical Ab | Device for evaluating positions of an implantable medical device |
| JP2008520285A (ja) | 2004-11-16 | 2008-06-19 | マイクロメツド・カーデイオバスキユラー・インコーポレイテツド | 心臓ポンプシステム用遠隔データモニタ |
| US7339275B2 (en) | 2004-11-22 | 2008-03-04 | Freescale Semiconductor, Inc. | Multi-chips semiconductor device assemblies and methods for fabricating the same |
| DE102005003632A1 (de) | 2005-01-20 | 2006-08-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Katheter für die transvaskuläre Implantation von Herzklappenprothesen |
| WO2006080011A2 (en) | 2005-01-25 | 2006-08-03 | Ramot At Tel Aviv University Ltd. | Using pulsed-wave ultrasonography for determining an aliasing-free radial velocity spectrum of matter moving in a region |
| US8594790B2 (en) | 2005-01-27 | 2013-11-26 | Medtronic, Inc. | System and method for monitoring a ventricular pressure index to predict worsening heart failure |
| WO2006086490A1 (en) | 2005-02-07 | 2006-08-17 | Medtronic, Inc. | Ion imbalance detector |
| US7563248B2 (en) | 2005-03-17 | 2009-07-21 | Smisson-Cartledge Biomedical Llc | Infusion fluid heat exchanger and cartridge |
| DE102005017546A1 (de) | 2005-04-16 | 2006-10-19 | Impella Cardiosystems Gmbh | Verfahren zur Steuerung einer Blutpumpe |
| US9204819B2 (en) | 2005-05-06 | 2015-12-08 | Vasonova, Inc. | Endovenous access and guidance system utilizing non-image based ultrasound |
| EP1898971B1 (de) | 2005-06-06 | 2015-03-11 | The Cleveland Clinic Foundation | Blutpumpe |
| WO2006133409A2 (en) | 2005-06-08 | 2006-12-14 | Micromed Technology, Inc. | Artificial heart system |
| WO2006138728A2 (en) | 2005-06-17 | 2006-12-28 | The Research Foundation Of State University Of New York | Method of determining cardiac indicators |
| EP1893080A2 (de) | 2005-06-21 | 2008-03-05 | CardioMems, Inc. | Verfahren zur herstellung eines implantierbaren drahtlosen sensors für in-vivo-druckmessung |
| DE102005039446B4 (de) | 2005-08-18 | 2009-06-25 | Ilias-Medical Gmbh | Vorrichtung zur An- und Abreicherung von Stoffen in einer Flüssigkeit |
| US8657875B2 (en) | 2005-09-26 | 2014-02-25 | Abiomed, Inc. | Method and apparatus for pumping blood |
| DE102005046008B4 (de) | 2005-09-26 | 2007-05-24 | Infineon Technologies Ag | Halbleitersensorbauteil mit Sensorchip und Verfahren zur Herstellung desselben |
| US20070073352A1 (en) | 2005-09-28 | 2007-03-29 | Euler David E | Method and apparatus for regulating a cardiac stimulation therapy |
| US20070088214A1 (en) | 2005-10-14 | 2007-04-19 | Cardiac Pacemakers Inc. | Implantable physiologic monitoring system |
| US20070142923A1 (en) | 2005-11-04 | 2007-06-21 | Ayre Peter J | Control systems for rotary blood pumps |
| EP1813302A1 (de) | 2006-01-25 | 2007-08-01 | Debiotech S.A. | Vorrichtung für medizinische Anwendung um Fluidvolumen zu messen |
| DE102006001180B4 (de) | 2006-01-06 | 2010-12-23 | Technische Universität Chemnitz | Rheometer und Auswerteverfahren zur Bestimmung von Fließkurve und Viskositätsfunktion von optisch transparenten Newtonschen und Nicht-Newtonschen Flüssigkeiten |
| US20110022057A1 (en) | 2006-02-03 | 2011-01-27 | Pacesetter, Inc. | Apparatus and methods for transferring an implanted elongate body to a remote site |
| EP1825873A3 (de) | 2006-02-23 | 2007-09-26 | Levitronix LLC | Drainagekanule, Perfusionskanüle und Blut-Managementsystem |
| CN101448535B (zh) | 2006-03-23 | 2011-10-19 | 宾州研究基金会 | 带有可膨胀叶轮泵的心脏辅助装置 |
| AU2007201127B2 (en) | 2006-03-23 | 2012-02-09 | Thoratec Corporation | System For Preventing Diastolic Heart Failure |
| AT503628B1 (de) | 2006-04-25 | 2008-06-15 | Vc Trust Holding Gmbh | Verfahren zur überwachung der maximalentfernung zweier objekte |
| US20070255352A1 (en) | 2006-04-27 | 2007-11-01 | Roline Glen M | Implantable sensors having current-based switches for improved fault tolerance |
| US7549964B2 (en) | 2006-05-04 | 2009-06-23 | Viasys Healthcare, Inc. | Multiple frequency doppler ultrasound probe |
| US7850594B2 (en) | 2006-05-09 | 2010-12-14 | Thoratec Corporation | Pulsatile control system for a rotary blood pump |
| US7468039B2 (en) | 2006-06-02 | 2008-12-23 | Cook Vascular Incorporated | Adjustable tension cuff assembly |
| US7909770B2 (en) | 2006-07-05 | 2011-03-22 | Cardiomems, Inc. | Method for using a wireless pressure sensor to monitor pressure inside the human heart |
| DE102006032583A1 (de) | 2006-07-13 | 2008-01-17 | Biotronik Crm Patent Ag | Einführvorrichtung |
| DE102006035548B4 (de) | 2006-07-27 | 2009-02-12 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Kunstherz |
| US20080097595A1 (en) | 2006-08-22 | 2008-04-24 | Shlomo Gabbay | Intraventricular cardiac prosthesis |
| JP5457182B2 (ja) | 2006-09-14 | 2014-04-02 | サーキュライト・インコーポレーテッド | 血管内血液ポンプおよびカテーテル |
| EP1903000B1 (de) | 2006-09-25 | 2019-09-18 | Sorin CRM SAS | Implantierbares biokompatibles Bauteil, das ein aktives integriertes Element wie etwa einen Messfühler für einen physiologischen Parameter, ein elektromechanisches Mikrosystem oder einen elektronischen Schaltkreis umfasst |
| US7963905B2 (en) | 2006-10-11 | 2011-06-21 | Thoratec Corporation | Control system for a blood pump |
| US20080091239A1 (en) | 2006-10-16 | 2008-04-17 | St. Jude Medical Ab | Cardiac assist device and method using epicardially placed microphone |
| US20080133006A1 (en) * | 2006-10-27 | 2008-06-05 | Ventrassist Pty Ltd | Blood Pump With An Ultrasonic Transducer |
| JP5283888B2 (ja) * | 2006-11-02 | 2013-09-04 | 株式会社東芝 | 超音波診断装置 |
| US20080108930A1 (en) | 2006-11-03 | 2008-05-08 | The Regents Of The University Of Michigan | Methods and Systems for Determining Volume Flow in a Blood or Fluid Conduit, Motion, and Mechanical Properties of Structures Within the Body |
| US8202224B2 (en) | 2006-11-13 | 2012-06-19 | Pacesetter, Inc. | System and method for calibrating cardiac pressure measurements derived from signals detected by an implantable medical device |
| AT504990B1 (de) | 2007-02-27 | 2008-12-15 | Miracor Medizintechnik Handels | Katheter zur unterstützung der leistung eines herzens |
| RU2009140665A (ru) | 2007-04-05 | 2011-05-10 | Микромед Текнолоджи, Инк. (Us) | Система нагнетания крови и способ ее эксплуатации |
| EP1987774A1 (de) * | 2007-05-03 | 2008-11-05 | BrainLAB AG | Messung der Sonographie-Schallgeschwindigkeit mittels Markereinrichtung |
| US8075472B2 (en) | 2007-05-03 | 2011-12-13 | Leviticus-Cardio Ltd. | Permanent ventricular assist device for treating heart failure |
| JP5266464B2 (ja) | 2007-05-10 | 2013-08-21 | ライニッシュ−ヴェストフェリッシェ・テクニッシェ・ホッホシューレ・アーヘン | 心機能変化評価装置 |
| EP2000159A1 (de) | 2007-06-07 | 2008-12-10 | NewCorTec S.p.A. | Leitung für eine ventrikuläre Hilfsvorrichtung |
| JP5201887B2 (ja) | 2007-06-20 | 2013-06-05 | テルモ株式会社 | 人工心臓用血液ポンプシステムおよび機器監視システム |
| US20090024042A1 (en) | 2007-07-03 | 2009-01-22 | Endotronix, Inc. | Method and system for monitoring ventricular function of a heart |
| DE602007004842D1 (de) | 2007-07-18 | 2010-04-01 | Surgery In Motion Ltd | Vorrichtung zur Unterstützung bei der Herzbehandlung |
| US20090025459A1 (en) | 2007-07-23 | 2009-01-29 | Cardiac Pacemakers, Inc. | Implantable viscosity monitoring device and method therefor |
| EP2020246A1 (de) | 2007-08-03 | 2009-02-04 | Berlin Heart GmbH | Steuerung einer Rotationsblutpumpe mit wählbaren therapeutischen Optionen |
| EP2037236A3 (de) | 2007-09-11 | 2011-01-19 | Levitronix LLC | Verfahren zur Kalibrierung einer Durchflussmessung in einem Strömungssystem, sowie ein Strömungssystem zur Durchführung des Verfahrens |
| WO2017147291A1 (en) | 2016-02-24 | 2017-08-31 | Frazier Oscar H | Intraatrial ventricular assist device |
| US20160166747A1 (en) | 2007-10-01 | 2016-06-16 | Oscar H. Frazier | Intraatrial ventricular assist device |
| US8439859B2 (en) | 2007-10-08 | 2013-05-14 | Ais Gmbh Aachen Innovative Solutions | Catheter device |
| US20090105799A1 (en) | 2007-10-23 | 2009-04-23 | Flowmedica, Inc. | Renal assessment systems and methods |
| US8323202B2 (en) | 2007-11-16 | 2012-12-04 | Pneumrx, Inc. | Method and system for measuring pulmonary artery circulation information |
| US7794384B2 (en) | 2007-12-07 | 2010-09-14 | Terumo Heart, Inc. | Dual communication interface for artificial heart system |
| EP2072150B1 (de) | 2007-12-19 | 2023-09-27 | Ueda Japan Radio Co., Ltd. | Ultraschallwandler |
| CN101214158A (zh) | 2007-12-29 | 2008-07-09 | 同济大学附属东方医院 | 可植入式实时流量检测仪 |
| US7856335B2 (en) | 2008-01-25 | 2010-12-21 | Micromed Technology, Inc. | Device, method, and system for calibration of a flow meter used in conjunction with a ventricular assist device |
| WO2009102613A2 (en) | 2008-02-11 | 2009-08-20 | Cardiac Pacemakers, Inc. | Methods of monitoring hemodynamic status for ryhthm discrimination within the heart |
| JP5170751B2 (ja) | 2008-03-28 | 2013-03-27 | テルモ株式会社 | 血液ポンプ装置 |
| US8211028B2 (en) | 2008-04-30 | 2012-07-03 | Medtronic, Inc. | System and method of determining arterial blood pressure and ventricular fill parameters from ventricular blood pressure waveform data |
| CN101579233A (zh) | 2008-05-14 | 2009-11-18 | 深圳市盛力康实业发展有限公司 | 一种心血管功能检测方法、系统及装置 |
| US20090312650A1 (en) | 2008-06-12 | 2009-12-17 | Cardiac Pacemakers, Inc. | Implantable pressure sensor with automatic measurement and storage capabilities |
| DE102008040266A1 (de) | 2008-07-09 | 2010-01-14 | Biotronik Crm Patent Ag | Implantierbare Messanordnung |
| US9713701B2 (en) | 2008-07-31 | 2017-07-25 | Medtronic, Inc. | Using multiple diagnostic parameters for predicting heart failure events |
| EP2187807B1 (de) | 2008-07-31 | 2012-06-27 | Medtronic, Inc. | System zur verwendung multipler diagnostischer parameter zur vorhersage von herzinsuffizienz-ereignissen |
| EP3485936B1 (de) | 2008-09-10 | 2021-10-27 | HeartWare, Inc. | Tet-system für implantierte medizinische vorrichtung |
| WO2010039876A1 (en) | 2008-09-30 | 2010-04-08 | Ihc Intellectual Asset Management, Llc | Physiological characteristic determination for a medical device user |
| WO2010039063A1 (en) | 2008-09-30 | 2010-04-08 | St. Jude Medical Ab | Heart failure detector |
| CN102170821B (zh) | 2008-10-01 | 2013-08-07 | 株式会社Irumedi | 心血管分析装置 |
| US8435182B1 (en) | 2008-10-02 | 2013-05-07 | Hitachi Aloka Medical, Ltd. | Methods and apparatus for ultrasound imaging |
| WO2010080717A1 (en) | 2009-01-12 | 2010-07-15 | The Board Of Trustees Of The Leland Stanford Junior University | Drainage device and method |
| DE102009007216A1 (de) | 2009-02-03 | 2010-08-12 | Siemens Aktiengesellschaft | Blutpumpe und medizintechnische Vorrichtung |
| US20100222635A1 (en) | 2009-02-27 | 2010-09-02 | Thoratec Corporation | Maximizing blood pump flow while avoiding left ventricle collapse |
| US8562507B2 (en) | 2009-02-27 | 2013-10-22 | Thoratec Corporation | Prevention of aortic valve fusion |
| US20100222878A1 (en) | 2009-02-27 | 2010-09-02 | Thoratec Corporation | Blood pump system with arterial pressure monitoring |
| US8449444B2 (en) | 2009-02-27 | 2013-05-28 | Thoratec Corporation | Blood flow meter |
| US20100222633A1 (en) | 2009-02-27 | 2010-09-02 | Victor Poirier | Blood pump system with controlled weaning |
| DE102009011726A1 (de) | 2009-03-04 | 2010-09-09 | Siemens Aktiengesellschaft | Medizintechnische Vorrichtung und Verfahren zur Kontrolle der Lage einer Blutpumpe |
| US20120095355A1 (en) | 2009-03-13 | 2012-04-19 | Proteus Biomedical, Inc. | Volume Sensing |
| EP2411785A4 (de) | 2009-03-24 | 2016-04-27 | Saint Clair Systems Inc | Internes viskometer ohne bewegliche teile sowie verfahren und computerlesbares medium zur aufrechterhaltung einer erwünschten viskosität |
| CN201437016U (zh) | 2009-03-26 | 2010-04-14 | 同济大学附属东方医院 | 植入式心室辅助装置 |
| WO2010131136A1 (en) | 2009-05-13 | 2010-11-18 | Koninklijke Philips Electronics, N.V. | Ultrasonic blood flow doppler audio with pitch shifting |
| US8231519B2 (en) | 2009-05-20 | 2012-07-31 | Thoratec Corporation | Multi-lumen cannula |
| US9782527B2 (en) | 2009-05-27 | 2017-10-10 | Tc1 Llc | Monitoring of redundant conductors |
| US8657748B2 (en) | 2009-06-09 | 2014-02-25 | National Institute Of Advanced Industrial Science And Technology | Blood vessel function inspecting apparatus |
| DE102009025464A1 (de) | 2009-06-12 | 2011-01-27 | Technische Universität Dresden | Anordnung und Verfahren zur kombinierten Bestimmung von Schallgeschwindigkeiten und Abständen in flüssigen und festen Medien mittels Ultraschall |
| DE112010002450B4 (de) * | 2009-06-12 | 2017-12-07 | Technische Universität Dresden | Anordnung und Verfahren zur kombinierten Bestimmung von Schallgeschwindigkeiten und Abständen in Medien mittels Ultraschall |
| US20100324378A1 (en) | 2009-06-17 | 2010-12-23 | Tran Binh C | Physiologic signal monitoring using ultrasound signals from implanted devices |
| DE102009027195A1 (de) | 2009-06-25 | 2010-12-30 | Sorin Group Deutschland Gmbh | Vorrichtung zur Förderung von Blut in einem extrakorporalen Kreislauf |
| US8784310B2 (en) | 2009-07-02 | 2014-07-22 | Cardiac Pacemakers, Inc. | Vascular pressure sensor with electrocardiogram electrodes |
| US20160008531A1 (en) | 2009-08-11 | 2016-01-14 | W-Z Biotech, Llc | Dual lumen cannula for artificial lung and right ventricular assist device |
| US8628460B2 (en) | 2009-09-21 | 2014-01-14 | Heartware, Inc. | Hard-wired implanted controller system |
| US9943236B2 (en) | 2009-09-30 | 2018-04-17 | Medtronic, Inc. | Methods for guiding heart failure decompensation therapy |
| DE102009047845A1 (de) | 2009-09-30 | 2011-03-31 | Abiomed Europe Gmbh | Herzunterstützungssystem |
| CN101711683A (zh) | 2009-10-30 | 2010-05-26 | 中国人民解放军第三军医大学第一附属医院 | 一种测量动脉血液流速的方法 |
| CN201658687U (zh) | 2009-11-17 | 2010-12-01 | 陈洵 | 一种微型螺杆式血泵 |
| EP2333514A1 (de) | 2009-11-30 | 2011-06-15 | Berlin Heart GmbH | Einrichtung und Verfahren zur Messung von strömungsmechanisch wirksamen Materialparametern eines Fluids |
| EP2506888B1 (de) | 2009-12-03 | 2020-02-05 | Oregon Health & Science University | Vollständig künstliches herz |
| EP2338539A1 (de) | 2009-12-23 | 2011-06-29 | ECP Entwicklungsgesellschaft mbH | Pumpeneinrichtung mit einer Detektionseinrichtung |
| DE102009060668A1 (de) | 2009-12-28 | 2011-06-30 | Fresenius Medical Care Deutschland GmbH, 61352 | Vorrichtung und Verfahren zur Überwachung einer extrakorporalen Blutbehandlung |
| EP2525870B1 (de) | 2010-01-19 | 2019-03-13 | Heartware, Inc. | Physiologisch reagierendes ventrikuläres unterstützungssystem |
| US9028413B2 (en) | 2010-03-08 | 2015-05-12 | Siemens Medical Solutions Usa, Inc. | Prediction-based flow estimation for ultrasound diagnostic imaging |
| DE102010011798B4 (de) | 2010-03-17 | 2017-07-13 | Fresenius Medical Care Deutschland Gmbh | Verfahren und Vorrichtung zur Druck- oder Volumenstrombestimmung von medizinischen Fluiden |
| DE102010012042B4 (de) | 2010-03-19 | 2025-02-06 | Tdk Corporation | Bauelement mit einem Chip in einem Hohlraum und einer spannungsreduzierten Befestigung |
| CA2800659C (en) | 2010-05-26 | 2016-04-19 | Scott C. Corbett | Anatomic fit of a percutaneous vad for right heart support |
| TW201212959A (en) | 2010-06-22 | 2012-04-01 | Thoratec Corp | Fluid delivery system and method for monitoring fluid delivery system |
| WO2012012552A1 (en) | 2010-07-22 | 2012-01-26 | Thoratec Corporation | Controlling implanted blood pumps |
| WO2012018917A1 (en) | 2010-08-03 | 2012-02-09 | World Heart Corporation | Conformal cannula device and related methods |
| CA2808658C (en) | 2010-08-20 | 2017-02-28 | Thoratec Corporation | Implantable blood pump |
| EP3020426B1 (de) | 2010-09-24 | 2017-12-27 | Tc1 Llc | Erzeugung eines künstlichen pulses |
| US8608636B2 (en) | 2010-11-12 | 2013-12-17 | Libraheart, Inc.V | Ventricular assist device cannula and ventricular assist device including the same |
| US10517667B2 (en) | 2014-05-16 | 2019-12-31 | Biosense Webster (Israel) Ltd. | Catheter tip with microelectrodes |
| AT510914B1 (de) | 2011-01-03 | 2012-10-15 | Lang Leonh | Medizinische elektrode mit gedruckter zuleitung und verfahren zu ihrer herstellung |
| WO2012094535A2 (en) | 2011-01-06 | 2012-07-12 | Thoratec Corporation | Percutaneous heart pump |
| US9492601B2 (en) | 2011-01-21 | 2016-11-15 | Heartware, Inc. | Suction detection on an axial blood pump using BEMF data |
| WO2012100210A1 (en) | 2011-01-21 | 2012-07-26 | Heartware, Inc. | Flow estimation in a blood pump |
| US9283315B2 (en) * | 2011-02-08 | 2016-03-15 | Fresenius Medical Care Holdings, Inc. | Apparatus and method for real time measurement of a constituent of blood to monitor blood volume |
| US8876686B2 (en) | 2011-02-18 | 2014-11-04 | Vascor, Inc | Control of blood flow assist systems |
| EP2693609B1 (de) | 2011-03-28 | 2017-05-03 | Thoratec Corporation | Dreh- und antriebsvorrichtung und zentrifugalpumpvorrichtung damit |
| EP2505847B1 (de) | 2011-03-29 | 2019-09-18 | ABB Schweiz AG | Verfahren zum erkennen des verschleisses in einer mit einem frequenzumrichter angetriebenen pumpe |
| US8818478B2 (en) | 2011-03-31 | 2014-08-26 | Adidas Ag | Sensor garment |
| US10022054B2 (en) | 2011-06-08 | 2018-07-17 | Integrated Sensing Systems, Inc. | Implantable wireless sensor systems |
| DE102011106142A1 (de) | 2011-06-10 | 2012-12-27 | Rheinisch-Westfälische Technische Hochschule Aachen | Blutentnahmekanüle einer die Herzfunktion ersetzenden oder unterstützenden Pumpe |
| WO2013003370A2 (en) | 2011-06-27 | 2013-01-03 | Heartware, Inc. | Flow estimation in a blood pump |
| DE112012002922T5 (de) | 2011-07-11 | 2014-03-27 | Vascor, Inc. | Transkutane Leistungsübertragung und Kommunikation für implantierte Herzunterstützungs- und andere Vorrichtungen |
| EP2739347B1 (de) | 2011-08-05 | 2016-07-06 | CircuLite, Inc. | Mit einem gewebeeinwachsmaterial verkleidete kanüle und verwendungsverfahren dafür |
| US8613696B2 (en) | 2011-08-15 | 2013-12-24 | Thoratec Corporation | Non-invasive diagnostics for ventricle assist device |
| KR102215188B1 (ko) | 2011-08-17 | 2021-02-17 | 아르티오 메디컬 인크. | 혈액 펌프 시스템 및 방법 |
| US8849398B2 (en) | 2011-08-29 | 2014-09-30 | Minnetronix, Inc. | Expandable blood pump for cardiac support |
| DE202011110389U1 (de) | 2011-09-05 | 2013-09-26 | Ecp Entwicklungsgesellschaft Mbh | Medizinprodukt mit einem Funktionselement zum invasivenEinsatz im Körper eines Patienten |
| EP2564771A1 (de) | 2011-09-05 | 2013-03-06 | ECP Entwicklungsgesellschaft mbH | Medizinprodukt mit einem Funktionselement zum invasiven Einsatz im Körper eines Patienten |
| EP2570143B1 (de) | 2011-09-14 | 2014-01-15 | BIOTRONIK SE & Co. KG | Implantierbares kardiales Therapiergerät |
| US9517348B2 (en) | 2011-09-14 | 2016-12-13 | Biotronik Se & Co. Kg | Implantable cardiac therapy device |
| US8864643B2 (en) | 2011-10-13 | 2014-10-21 | Thoratec Corporation | Pump and method for mixed flow blood pumping |
| WO2013061280A1 (en) | 2011-10-28 | 2013-05-02 | Hemodynamix Medical Systems Inc. | Fluid temperature and flow sensor apparatus and system for cardiovascular and other medical applications |
| US20130116575A1 (en) | 2011-11-04 | 2013-05-09 | Marlin Mickle | Implantable doppler blood flow monitor and doppler probe |
| US8714017B2 (en) * | 2011-11-15 | 2014-05-06 | Hema-Q, Inc. | Apparatus for non-invasive determination of sound velocity in a liquid and determining a parameter of the liquid from the sound velocity |
| ES2973492T3 (es) | 2011-11-23 | 2024-06-20 | Abiomed Inc | Injerto para ser utilizado con un dispositivo de contrapulsación |
| TW201336478A (zh) * | 2011-12-01 | 2013-09-16 | Maui Imaging Inc | 使用以回音為基及多孔徑都卜勒超音波之移動偵測 |
| CN104379507A (zh) | 2011-12-22 | 2015-02-25 | 环球油品公司 | 沸石的分层转化合成 |
| EP2617443B1 (de) | 2012-01-17 | 2015-10-21 | PulseCath B.V. | Druckbetätigte Einzellumen-Blutpumpvorrichtung |
| NL2008276C2 (en) | 2012-02-13 | 2013-09-02 | Egbert Jan Constant Ottevanger | Method and system for detecting cardiac tamponade in a patient. |
| ES3041040T3 (en) | 2012-03-26 | 2025-11-06 | Procyrion Inc | Systems and methods for fluid flows and/or pressures for circulation and perfusion enhancement |
| DE102012207053A1 (de) | 2012-04-27 | 2013-10-31 | Abiomed Europe Gmbh | Intravasale rotationsblutpumpe |
| DE102012207042B4 (de) | 2012-04-27 | 2017-09-07 | Abiomed Europe Gmbh | Pulsationsblutpumpe |
| DE102012207056B4 (de) | 2012-04-27 | 2021-11-11 | Abiomed Europe Gmbh | Kathethersystem und intravasale blutpumpe mit diesem kathetersystem |
| DE102012207049A1 (de) | 2012-04-27 | 2015-08-13 | Abiomed Europe Gmbh | Intravasale rotationsblutpumpe |
| EP2861124B1 (de) | 2012-06-13 | 2019-06-26 | Boston Scientific Scimed, Inc. | Visualisierungssystem für medizinische vorrichtung |
| TR201207222A2 (tr) | 2012-06-21 | 2012-11-21 | Oran B�Lent | Damar içi kalp destek cihazı. |
| EP4186557A1 (de) | 2012-07-03 | 2023-05-31 | Tc1 Llc | Motoranordnung für katheterpumpe |
| WO2014011915A2 (en) | 2012-07-11 | 2014-01-16 | Robert Bosch Gmbh | Self-powered pressure sensor assembly |
| US20150174307A1 (en) | 2012-07-19 | 2015-06-25 | Regents Of The University Of Minnesota | Cardiac assist device with pulse wave analysis |
| JP5660737B2 (ja) | 2012-07-20 | 2015-01-28 | 日本ライフライン株式会社 | 電極カテーテルおよびその製造方法 |
| EP2892583B1 (de) | 2012-09-05 | 2023-01-25 | Heartware, Inc. | Integrierter strömungssensor für ventrikuläres unterstützungssystem |
| EP2895215A4 (de) | 2012-09-13 | 2016-08-31 | Circulite Inc | Blutflusssystem mit variabler geschwindigkeitsregelung |
| EP2897668B1 (de) | 2012-09-21 | 2019-01-09 | Reinheart GmbH | Herzunterstützungssystem |
| DE102013012391A1 (de) | 2012-09-26 | 2014-03-27 | CircuLite GmbH | Pumpe, System mit einer Blutpumpe und Verfahren zur Herstellung einer Blutpumpe |
| WO2014062827A1 (en) | 2012-10-16 | 2014-04-24 | Spence Paul A | Devices, systems, and methods for facilitating flow from the heart to a blood pump |
| US9925354B2 (en) | 2012-10-24 | 2018-03-27 | Evergreen Medical Technologies, Inc. | Flex circuit ribbon based elongated members and attachments |
| US9792412B2 (en) | 2012-11-01 | 2017-10-17 | Boston Scientific Neuromodulation Corporation | Systems and methods for VOA model generation and use |
| US9713662B2 (en) | 2012-11-30 | 2017-07-25 | The Penn State Research Foundation | Smart tip LVAD inlet cannula |
| US8834345B2 (en) | 2013-01-16 | 2014-09-16 | Thoratec Corporation | Backflow detection for centrifugal blood pump |
| US8968174B2 (en) | 2013-01-16 | 2015-03-03 | Thoratec Corporation | Motor fault monitor for implantable blood pump |
| US9371826B2 (en) | 2013-01-24 | 2016-06-21 | Thoratec Corporation | Impeller position compensation using field oriented control |
| US9556873B2 (en) | 2013-02-27 | 2017-01-31 | Tc1 Llc | Startup sequence for centrifugal pump with levitated impeller |
| CA3126978C (en) | 2013-03-13 | 2025-02-06 | Magenta Medical Ltd. | TURBINE TO BE USED WITH AN AXIAL SUPPORT ELEMENT |
| US10583231B2 (en) | 2013-03-13 | 2020-03-10 | Magenta Medical Ltd. | Blood pump |
| US11033728B2 (en) | 2013-03-13 | 2021-06-15 | Tc1 Llc | Fluid handling system |
| JP6530367B2 (ja) | 2013-03-13 | 2019-06-12 | ティーシーワン エルエルシー | 流体導出入システム |
| US8882477B2 (en) | 2013-03-14 | 2014-11-11 | Circulite, Inc. | Magnetically levitated and driven blood pump and method for using the same |
| US9919088B2 (en) | 2013-03-14 | 2018-03-20 | Yale University | Implantable heart pump controller |
| US9789236B2 (en) | 2013-03-14 | 2017-10-17 | Yale University | Implantable heart pump controller |
| WO2014143593A1 (en) | 2013-03-15 | 2014-09-18 | Thoratec Corporation | Catheter pump assembly including a stator |
| WO2014145667A2 (en) | 2013-03-15 | 2014-09-18 | Vascor, Inc. | Thoracic aorta ventricular assist system |
| US9848899B2 (en) | 2013-03-15 | 2017-12-26 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Pressure sensing of irrigant backpressure for aligning directional medical devices with target tissue |
| JP5608848B2 (ja) | 2013-03-27 | 2014-10-15 | 株式会社サンメディカル技術研究所 | 人工心臓制御装置及び人工心臓システム |
| DE102013013700A1 (de) | 2013-04-05 | 2014-10-09 | CircuLite GmbH | Implantierbare Blutpumpe, Blutpumpensystem und Verfahren zur Datenübertragung in einem Blutpumpensystem |
| EP2796156A1 (de) | 2013-04-24 | 2014-10-29 | ETH Zurich | Biomedizinische Vorrichtung zum Pumpen von Blut eines Patienten oder eines Tieres durch einen sekundären intra- oder extrakorporalen Blutkreislauf |
| US9713663B2 (en) | 2013-04-30 | 2017-07-25 | Tc1 Llc | Cardiac pump with speed adapted for ventricle unloading |
| US10052420B2 (en) | 2013-04-30 | 2018-08-21 | Tc1 Llc | Heart beat identification and pump speed synchronization |
| US9631997B2 (en) | 2013-05-14 | 2017-04-25 | Infineon Technologies Ag | Apparatus for measuring a pressure, a method for manufacturing an apparatus for measuring a pressure and a battery |
| AU2014268473A1 (en) | 2013-05-22 | 2015-12-24 | Boston Scientific Scimed, Inc. | Pressure sensing guidewire systems including an optical connector cable |
| US9427508B2 (en) | 2013-06-04 | 2016-08-30 | Heartware, Inc. | Axial flow pump pressure algorithm |
| WO2014197558A2 (en) | 2013-06-04 | 2014-12-11 | Heartware, Inc. | Suction detection in an axial blood pump using bemf data |
| DE102013106352A1 (de) | 2013-06-18 | 2014-12-18 | Universität Zu Lübeck | Herzunterstützungssystem sowie Herzunterstützungsverfahren |
| GB201311494D0 (en) | 2013-06-27 | 2013-08-14 | Univ Oslo Hf | Monitoring of a cardiac assist device |
| US9968719B2 (en) | 2013-07-30 | 2018-05-15 | Heartware, Inc. | Wire scaffold device for ventricular assist device |
| EP2851099A1 (de) | 2013-09-20 | 2015-03-25 | Berlin Heart GmbH | Blutpumpensteuerungssystem zur Steuerung einer Blutpumpe |
| EP2851100A1 (de) | 2013-09-20 | 2015-03-25 | Berlin Heart GmbH | Blutpumpensteuerungssystem und Verfahren zur Steuerung einer Blutpumpe |
| EP2859911A1 (de) | 2013-10-11 | 2015-04-15 | qSTAR Medical SAS | Portvorrichtungen für vaskulären Zugang mit integrierten Sensoren |
| EP2860399A1 (de) | 2013-10-14 | 2015-04-15 | ECP Entwicklungsgesellschaft mbH | Verfahren zum Betrieb einer Versorgungseinrichtung, die einen Kanal mit einer Flüssigkeit beaufschlagt, sowie Versorgungseinrichtung |
| CN103519847A (zh) | 2013-10-25 | 2014-01-22 | 中国科学院深圳先进技术研究院 | 基于超声回波射频信号的多普勒血流速度估测方法和系统 |
| CN107773273B (zh) | 2013-11-19 | 2023-12-01 | 港大科桥有限公司 | 超声流体向量成像装置及其方法 |
| US20150157216A1 (en) | 2013-12-06 | 2015-06-11 | Volcano Corporation | Device, system, and method for assessing intravascular pressure |
| WO2015085220A1 (en) | 2013-12-06 | 2015-06-11 | Volcano Corporation | Device, system, and method for assessing intravascular pressure |
| JP2015122448A (ja) | 2013-12-24 | 2015-07-02 | 住友電工プリントサーキット株式会社 | フッ素樹脂基材、プリント配線板、生体情報測定デバイス及び人工臓器 |
| US20150365738A1 (en) | 2014-01-09 | 2015-12-17 | Rick Purvis | Telemetry arrangements for implantable devices |
| US9707402B2 (en) | 2014-02-14 | 2017-07-18 | Boston Scientific Neuromodulation Corporation | Plug-in accessory for configuring a mobile device into an external controller for an implantable medical device |
| US9616159B2 (en) | 2014-03-05 | 2017-04-11 | Medtronic Vascular Galway | Modular implantable ventricular assist device |
| JP6301696B2 (ja) * | 2014-03-25 | 2018-03-28 | テルモ株式会社 | 流量センサ及び流量センサを備えた体外循環装置、及びその制御方法 |
| DE102015004177A1 (de) | 2014-04-02 | 2015-10-08 | Em-Tec Gmbh | lmplantierbare Sensorik zur lntegration in Herzunterstützungssysteme, Herzunterstützungssystem und Verfahren zur Kontrolle und Steuerung einer Sensorik |
| WO2015160995A1 (en) | 2014-04-15 | 2015-10-22 | Thoratec Corporation | Ventricular assist devices |
| EP3131615B1 (de) | 2014-04-15 | 2021-06-09 | Tc1 Llc | Sensoren für katheterpumpen |
| US9694123B2 (en) | 2014-04-15 | 2017-07-04 | Tc1 Llc | Methods and systems for controlling a blood pump |
| WO2015160942A1 (en) | 2014-04-15 | 2015-10-22 | Thoratec Corporation | Catheter pump with off-set motor position |
| EP3479854A1 (de) | 2014-04-15 | 2019-05-08 | Tc1 Llc | Katheterpumpe mit zugangsports |
| US9786150B2 (en) | 2014-04-15 | 2017-10-10 | Tci Llc | Methods and systems for providing battery feedback to patient |
| DE102014105861B4 (de) | 2014-04-25 | 2015-11-05 | Infineon Technologies Ag | Sensorvorrichtung und Verfahren zum Herstellen einer Sensorvorrichtung |
| US10293090B2 (en) | 2014-04-25 | 2019-05-21 | Yale University | Percutaneous device and method for promoting movement of a bodily fluid |
| CN109381756B (zh) | 2014-05-19 | 2021-08-17 | 马真塔医药有限公司 | 血液泵浦装置 |
| WO2015179921A1 (en) | 2014-05-29 | 2015-12-03 | St Vincent's Hospital Sydney Limited | Ventricular assist device method and apparatus |
| DE102014108530A1 (de) | 2014-06-17 | 2015-12-17 | B. Braun Avitum Ag | Verfahren zur Sterilisierung eines Hohlfaserfiltermoduls, Hohlfaserfiltermodul mit Verschluss und Sauerstoff absorbierender Verschluss |
| US9308305B2 (en) | 2014-06-18 | 2016-04-12 | Ch Biomedical (Usa) Inc. | Implantable blood pump with integrated controller |
| WO2015195916A1 (en) | 2014-06-18 | 2015-12-23 | Eartware, Inc. | Methods and devices for identifying suction events |
| US20160183808A1 (en) | 2014-06-26 | 2016-06-30 | Cardiovascular Systems, Inc. | Methods, devices and systems for sensing, measuring and/or characterizing vessel and/or lesion compliance and/or elastance changes during vascular procedures |
| EP2962710A1 (de) | 2014-07-03 | 2016-01-06 | Berlin Heart GmbH | Verfahren und Herzunterstützungssystem zur Bestimmung eines Auslassdrucks |
| US9345824B2 (en) | 2014-07-07 | 2016-05-24 | Assistocor Gmbh & Co Kg | Ventricular assist device |
| DE102014213233A1 (de) * | 2014-07-08 | 2016-01-14 | Continental Automotive Gmbh | Vorrichtung zum Bestimmung einer Schallgeschwindigkeit eines Schallsignals in einem Fluid |
| DE102015112098A1 (de) | 2014-07-25 | 2016-01-28 | Minnetronix, Inc. | Spulenparameter und Steuerung |
| WO2016018434A1 (en) | 2014-08-01 | 2016-02-04 | Vadovations, Inc. | Coring dilator for defining an aperture in a tissue wall |
| US20160302672A1 (en) | 2014-08-04 | 2016-10-20 | Yamil Kuri | System and Method for Determining Arterial Compliance and Stiffness |
| EP3182930B1 (de) | 2014-08-18 | 2020-09-23 | St. Jude Medical, Cardiology Division, Inc. | Sensoren für künstliche herzvorrichtungen |
| EP3200846B1 (de) | 2014-10-01 | 2020-01-15 | Heartware, Inc. | Backup-controller-system mit aktualisierung |
| US10456168B2 (en) | 2014-10-30 | 2019-10-29 | Peter Osypka Stiftung | Transmyocardial insertion unit and its use |
| CA2967824A1 (en) | 2014-11-19 | 2016-05-26 | Advanced Cardiac Therapeutics, Inc. | Ablation devices, systems and methods of using a high-resolution electrode assembly |
| US20160144166A1 (en) | 2014-11-25 | 2016-05-26 | Medtronic Bakken Research Center B.V. | Medical lead with thin film |
| EP3231461B1 (de) | 2014-12-12 | 2019-08-14 | Terumo Kabushiki Kaisha | Extrakorporale kreislaufvorrichtung |
| WO2016130846A1 (en) | 2015-02-11 | 2016-08-18 | Thoratec Corporation | Heart beat identification and pump speed synchronization |
| US10371152B2 (en) | 2015-02-12 | 2019-08-06 | Tc1 Llc | Alternating pump gaps |
| JP2018507085A (ja) | 2015-02-24 | 2018-03-15 | ハートウェア、インコーポレイテッド | 徐脈治療用血液ポンプ |
| EP3069741A1 (de) | 2015-03-17 | 2016-09-21 | Berlin Heart GmbH | Herzpumpeneinrichtung und Verfahren zu ihrem Betrieb |
| EP3088016A1 (de) | 2015-04-29 | 2016-11-02 | Berlin Heart GmbH | Pumpeneinrichtung sowie verfahren zum betrieb einer pumpe für flüssigkeiten |
| US20160317043A1 (en) | 2015-04-30 | 2016-11-03 | Withings | Weighing scale with extended functions |
| EP3294369B1 (de) | 2015-05-11 | 2021-09-01 | White Swell Medical Ltd | Systeme zur druckreduzierung an einem abfluss eines kanals |
| EP3103391B1 (de) | 2015-05-21 | 2018-10-10 | BIOTRONIK SE & Co. KG | Implantierbare vorrichtung mit einem sauerstoffsensor |
| US10391683B2 (en) | 2015-05-31 | 2019-08-27 | Purdue Research Foundation | Method to genberate an ultra-stretchable electrical and heat conductive arrangement |
| DE202015009422U1 (de) | 2015-06-16 | 2017-07-12 | Berlin Heart Gmbh | Implantierbare Herzpumpe |
| EP3115755B1 (de) * | 2015-07-06 | 2022-02-16 | ABB Schweiz AG | System und verfahren zur messung einer schallgeschwindigkeit in einer flüssigen oder gasförmigen medium |
| CN106333707B (zh) | 2015-07-09 | 2020-12-01 | 深圳迈瑞生物医疗电子股份有限公司 | 超声多普勒图谱校正方法、装置及超声诊断系统 |
| WO2017015210A1 (en) | 2015-07-20 | 2017-01-26 | Thoratec Corporation | Strain gauge for flow estimation |
| JP6937299B2 (ja) | 2015-07-20 | 2021-09-22 | エル.アイ.エフ.イー. コーポレーション エス.エー.L.I.F.E. Corporation S.A. | センサ及び電子機器を有する衣類用の可撓性織物リボンコネクタ |
| WO2017015268A1 (en) | 2015-07-20 | 2017-01-26 | Thoratec Corporation | Flow estimation using hall-effect sensors |
| EP3135326A1 (de) | 2015-08-24 | 2017-03-01 | Berlin Heart GmbH | Herzpumpe sowie verfahren zum betrieb einer herzpumpe |
| EP3135325A1 (de) | 2015-08-24 | 2017-03-01 | Berlin Heart GmbH | Regeleinrichtung und verfahren für eine herzpumpe |
| CN117653061A (zh) | 2015-09-04 | 2024-03-08 | 波士顿科学国际有限公司 | 压力传感导丝 |
| US11235138B2 (en) | 2015-09-25 | 2022-02-01 | Procyrion, Inc. | Non-occluding intravascular blood pump providing reduced hemolysis |
| US10206651B2 (en) | 2015-09-30 | 2019-02-19 | General Electric Company | Methods and systems for measuring cardiac output |
| DE102015219263A1 (de) | 2015-10-06 | 2017-04-06 | Robert Bosch Gmbh | Pumpe für ein ventrikuläres Unterstützungssystem mit tribologischem Beanspruchungssensor und Verwendung |
| EP3361964A1 (de) | 2015-10-14 | 2018-08-22 | St. Jude Medical, Cardiology Division, Inc. | Vorrichtungen und verfahren zur implantation von vaskulären sensoren |
| EP3365041B1 (de) | 2015-10-23 | 2020-09-16 | Heartware, Inc. | Physiologisch reaktive blutpumpe für den nachweis und die behandlung von ischämie |
| WO2017079111A1 (en) | 2015-11-02 | 2017-05-11 | Heartware, Inc. | Methods and systems for adverse event prediction using pump operating data |
| DE102015222199A1 (de) | 2015-11-11 | 2017-05-11 | Robert Bosch Gmbh | Herzunterstützungspumpe, Verfahren zum Betreiben einer Herzunterstützungspumpe und Steuergerät |
| US10117983B2 (en) | 2015-11-16 | 2018-11-06 | Tc1 Llc | Pressure/flow characteristic modification of a centrifugal pump in a ventricular assist device |
| US10130743B2 (en) | 2015-11-17 | 2018-11-20 | Dale J. Yeatts | Wireless diagnostic system for indirect flow measurement in artificial heart pumps |
| WO2017087380A1 (en) | 2015-11-20 | 2017-05-26 | Tc1 Llc | System architecture that allows patient replacement of vad controller/interface module without disconnection of old module |
| WO2017087785A1 (en) | 2015-11-20 | 2017-05-26 | Tc1 Llc | Energy management of blood pump controllers |
| WO2017087717A1 (en) | 2015-11-20 | 2017-05-26 | Tc1 Llc | Blood pump controllers having daisy-chained batteries |
| US11324442B1 (en) | 2015-11-25 | 2022-05-10 | Maquet Cardiovascular Llc | Broadband impedance spectroscopy and its use for tissue welding |
| EP3181163A1 (de) | 2015-12-14 | 2017-06-21 | Berlin Heart GmbH | Blutpumpe zur herzunterstützung und verfahren zu ihrem betrieb |
| US10426879B2 (en) | 2015-12-14 | 2019-10-01 | Heartware, Inc. | Blood pump with restart lockout |
| CN108430531B (zh) | 2015-12-28 | 2020-09-22 | 心脏器械股份有限公司 | Vad控制器测试仪 |
| US10722690B2 (en) | 2015-12-28 | 2020-07-28 | Boston Scientific Scimed, Inc. | Medical devices with antithrombogenic coatings |
| EP3397298B1 (de) | 2015-12-28 | 2023-07-26 | Heartware, Inc. | Pumpenmotorsteuerung mit adaptivem anlauf |
| US9883836B2 (en) | 2016-02-08 | 2018-02-06 | International Business Machines Corporation | Embedded device for flow monitoring |
| EP3205359B1 (de) | 2016-02-11 | 2018-08-29 | Abiomed Europe GmbH | Blutpumpensystem |
| EP3205360B1 (de) | 2016-02-11 | 2018-08-29 | Abiomed Europe GmbH | Blutpumpe |
| CN108463715A (zh) | 2016-03-08 | 2018-08-28 | 泰尔茂株式会社 | 成分测定装置、成分测定方法以及成分测定程序 |
| JP2017176719A (ja) | 2016-03-31 | 2017-10-05 | 日本ゼオン株式会社 | カテーテル |
| TW202233270A (zh) | 2016-04-29 | 2022-09-01 | 美商亞提歐醫藥公司 | 用於運輸血液至血泵系統之導管及血泵系統 |
| CN206007680U (zh) | 2016-05-16 | 2017-03-15 | 北京精密机电控制设备研究所 | 一种植入式心室辅助装置 |
| AU2017279518B2 (en) | 2016-06-06 | 2022-05-26 | Abiomed, Inc. | Blood pump assembly having a sensor and a sensor shield |
| EP3263148B1 (de) | 2016-06-29 | 2019-05-08 | Berlin Heart GmbH | Verfahren zur ermittlung von betriebsparametern einer blutpumpe |
| EP3478333B1 (de) | 2016-07-01 | 2024-09-25 | Heartware, Inc. | Signalverarbeitungsschaltung zur bewahrung des flüssigkeitshaushalts |
| US10213537B2 (en) | 2016-07-19 | 2019-02-26 | Heartware, Inc. | Ventricular assist devices and integrated sensors thereof |
| CN109562211B (zh) | 2016-08-01 | 2021-07-06 | 心脏器械股份有限公司 | 基于vad电流波形的心率确定 |
| EP3490628B1 (de) | 2016-08-01 | 2021-02-24 | Heartware, Inc. | Vad mit aortenklappenöffnungserkennung |
| US10660998B2 (en) | 2016-08-12 | 2020-05-26 | Tci Llc | Devices and methods for monitoring bearing and seal performance |
| DK3287154T3 (da) | 2016-08-23 | 2019-11-18 | Abiomed Europe Gmbh | Ventrikulær hjælpeindretning |
| EP3509662B1 (de) | 2016-09-06 | 2020-12-30 | Heartware, Inc. | Integrierte sensoren für intraventrikuläres herzunterstützungssystem |
| MX2019002735A (es) | 2016-09-08 | 2019-08-26 | Kk Advance | Sistema de administracion de informacion de diferencias individuales en tratamiento de dialisis. |
| CN114432589B (zh) | 2016-09-19 | 2025-05-09 | 阿比奥梅德公司 | 量化心脏功能并促进心脏恢复的心血管辅助系统 |
| JP6791976B2 (ja) | 2016-09-29 | 2020-11-25 | テルモ株式会社 | 制御装置、画像診断装置、制御装置の処理方法およびプログラム |
| CN115814236A (zh) | 2016-10-05 | 2023-03-21 | 祥丰医疗私人有限公司 | 一种导管 |
| DK3311859T3 (da) | 2016-10-19 | 2020-02-03 | Abiomed Europe Gmbh | Ventrikulær hjælpeindretningsstyring |
| DE102016013334B3 (de) | 2016-11-10 | 2018-04-05 | Fresenius Medical Care Deutschland Gmbh | Medizinisches Gerät mit einem Verbindungsstück für die Herstellung einer Flüssigkeitsverbindung zwischen flüssigkeitsführenden Leitungen |
| EP3335741A1 (de) | 2016-12-14 | 2018-06-20 | Berlin Heart GmbH | Steuervorrichtung für eine implantierbare herzpumpe mit zwei implantierbaren steuereinheiten und mit einem mit diesen verbundenen implantierbaren schalter |
| JP6309606B1 (ja) | 2016-12-21 | 2018-04-11 | 三井電気精機株式会社 | 遠心分離システム |
| EP3357523B1 (de) | 2017-02-07 | 2021-01-20 | Abiomed Europe GmbH | Blutpumpe |
| AU2018239421B2 (en) | 2017-03-21 | 2023-03-16 | Abiomed, Inc. | System and method for determining native cardiac output while continuing support to the heart with a catheter-mounted intracardiac blood pump having an imbedded thermistor |
| WO2018183568A1 (en) | 2017-03-29 | 2018-10-04 | Tc1 Llc | Pressure sensing ventricular assist devices and methods of use |
| WO2018183567A1 (en) | 2017-03-29 | 2018-10-04 | Tc1 Llc | Communication methods and architecture for heart treatment systems |
| EP3928830B1 (de) | 2017-03-29 | 2024-07-10 | Tc1 Llc | Einstellung eines pumpenprotokolls basierend auf unregelmässigem herzrhythmus |
| AU2018242620B2 (en) | 2017-03-31 | 2023-11-16 | CorWave SA | Implantable pump system having a rectangular membrane |
| US10863915B2 (en) | 2017-04-18 | 2020-12-15 | Boston Scientific Scimed Inc | Annotation histogram |
| WO2018200163A1 (en) | 2017-04-25 | 2018-11-01 | Heartware, Inc. | Anti-thrombus surface potential ceramic element |
| US10404093B2 (en) | 2017-04-26 | 2019-09-03 | Biosense Webster (Israel) Ltd. | Using location transmission signals for charging a wireless medical tool of an electromagnetic navigation system |
| EP3398626B1 (de) | 2017-05-04 | 2021-02-24 | Abiomed Europe GmbH | Intravaskuläre blutpumpe mit ballon |
| CN110650756B (zh) | 2017-05-16 | 2022-12-27 | 心脏器械股份有限公司 | 心室内流动可植入pv环路系统 |
| US11944495B2 (en) * | 2017-05-31 | 2024-04-02 | Foundry Innovation & Research 1, Ltd. | Implantable ultrasonic vascular sensor |
| CN115814262B (zh) | 2017-06-09 | 2025-09-16 | 阿比奥梅德公司 | 用于调节血液泵支持的对心脏参数的确定 |
| WO2018236815A1 (en) | 2017-06-20 | 2018-12-27 | Boston Scientific Scimed, Inc. | DEVICES AND METHODS FOR DETERMINING BLOOD FLOW AROUND BODY LIGHT |
| US11217344B2 (en) | 2017-06-23 | 2022-01-04 | Abiomed, Inc. | Systems and methods for capturing data from a medical device |
| JP7208896B2 (ja) | 2017-07-10 | 2023-01-19 | テルモ株式会社 | 圧力検知装置および体外循環装置 |
| EP3651822B1 (de) | 2017-07-13 | 2022-03-30 | Heartware, Inc. | Hvad-zirkadian-tracker (phi+) |
| EP3443993A1 (de) | 2017-08-17 | 2019-02-20 | Berlin Heart GmbH | Pumpe mit einem rotorsensor zur erfassung von physiologischen parametern, strömungs- und bewegungsparametern |
| WO2019036198A1 (en) | 2017-08-18 | 2019-02-21 | Heartware, Inc. | DETECTION AND REMOVAL OF THROMBUS USING A FLEXIBLE ELECTRONIC SENSOR AND A TRANSMITTER |
| CN111032111A (zh) | 2017-08-18 | 2020-04-17 | 心脏器械股份有限公司 | 血泵中的治疗性紫外线血液处理 |
| CN107632167B (zh) | 2017-08-21 | 2019-12-06 | 天津大学 | 基于超声脉冲多普勒与电学多传感器的两相流流速测量方法 |
| SG11202002430PA (en) | 2017-09-19 | 2020-04-29 | Abiomed Inc | Systems and methods for time-based one-time password management for a medical device |
| WO2019067230A1 (en) | 2017-09-26 | 2019-04-04 | Heartware, Inc. | INSTRUMENTED KINEMATIC CHAIN USING A SENSORY ARRAY OF FLEXIBLE ARTIFICIAL SKIN |
| US10806840B2 (en) | 2017-10-13 | 2020-10-20 | Heartware, Inc. | Dynamic HQ for closed loop control |
| ES2822984T3 (es) | 2017-10-20 | 2021-05-05 | Pulsecath B V | Sistema de bomba de catéter |
| JP2019080749A (ja) | 2017-10-30 | 2019-05-30 | テルモ株式会社 | 治療方法 |
| EP3720520B1 (de) | 2017-12-05 | 2024-07-03 | Heartware, Inc. | Blutpumpe mit laufradspüloperation |
| US11696782B2 (en) | 2017-12-12 | 2023-07-11 | Boston Scientific Scimed, Inc. | Rotational medical device |
| EP4520359A3 (de) | 2017-12-19 | 2025-04-30 | Boston Scientific Scimed Inc. | Herzfrequenzmessung mit blutpumpenlaufradposition |
| ES2994022T3 (en) | 2017-12-21 | 2025-01-16 | Abiomed Inc | Systems and methods for predicting patient health status |
| EP3508230A1 (de) | 2018-01-09 | 2019-07-10 | Abiomed Europe GmbH | Verfahren und vorrichtung zur kalibrierung und verwendung bei der schätzung des blutflusses in einer intravaskulären blutpumpe |
| CN111556764B (zh) | 2018-01-10 | 2023-07-07 | 马真塔医药有限公司 | 心室辅助装置 |
| IL320637A (en) | 2018-01-10 | 2025-07-01 | Tufts Medical Ct Inc | Systems and methods for unloading the left ventricle in the treatment of myocardial infarction |
| EP3737310B1 (de) | 2018-01-10 | 2022-07-27 | Boston Scientific Scimed, Inc. | Medizinische drehvorrichtung |
| US10905808B2 (en) | 2018-01-10 | 2021-02-02 | Magenta Medical Ltd. | Drive cable for use with a blood pump |
| US11154702B2 (en) | 2018-01-26 | 2021-10-26 | Heartware, Inc. | Early warning of LVAD thrombus formation |
| WO2019152363A1 (en) | 2018-01-31 | 2019-08-08 | Heartware, Inc. | Axial blood pump with impeller rinse operation |
| US11540732B2 (en) | 2018-02-22 | 2023-01-03 | Welling Medical B.V. | Dual pressure sensor aortic-valve catheter |
| JP7024103B2 (ja) | 2018-02-23 | 2022-02-22 | ボストン サイエンティフィック サイムド,インコーポレイテッド | 逐次生理学的測定による血管の評価方法 |
| EP4461341A3 (de) | 2018-03-15 | 2025-01-15 | Tc1 Llc | Verfahren und systeme zur verhinderung von rechtsherzinsuffizienz |
| KR102784312B1 (ko) | 2018-03-16 | 2025-03-19 | 아비오메드, 인크. | 심장 펌프 위치 추정 시스템 및 방법 |
| US10940251B2 (en) | 2018-03-20 | 2021-03-09 | Tc1 Llc | Mechanical gauge for estimating inductance changes in resonant power transfer systems with flexible coils for use with implanted medical devices |
| WO2019182691A1 (en) | 2018-03-21 | 2019-09-26 | Tc1 Llc | Improved driveline connectors and methods for use with heart pump controllers |
| US11389641B2 (en) | 2018-03-21 | 2022-07-19 | Tc1 Llc | Modular flying lead cable and methods for use with heart pump controllers |
| EP3768156B1 (de) | 2018-03-23 | 2023-09-20 | Boston Scientific Scimed, Inc. | Medizinische vorrichtung mit drucksensor |
| CN111970975B (zh) | 2018-03-29 | 2024-04-09 | 泰尔茂株式会社 | 拍摄设备 |
| US12048797B2 (en) | 2018-04-06 | 2024-07-30 | Kanha Vijay SINGRU | Ventricular decompression and assisting apparatus |
| EP3773783B1 (de) | 2018-04-06 | 2025-11-05 | Boston Scientific Scimed, Inc. | Mehrfacheingabealgorithmus zur geschwindigkeitsreaktion für eine blutpumpe |
| WO2019204219A1 (en) | 2018-04-18 | 2019-10-24 | Boston Scientific Scimed, Inc. | System for assessing a vessel with sequential physiological measurements |
| US11298519B2 (en) | 2018-05-08 | 2022-04-12 | Abiomed, Inc. | Use of cardiac assist device to improve kidney function |
| CN111757761B (zh) | 2018-05-10 | 2024-07-12 | 心脏器械股份有限公司 | 带有场定向控制的轴流泵压力算法 |
| US11141580B2 (en) | 2018-05-15 | 2021-10-12 | Cardiovascular Systems, Inc. | Intravascular blood pump system with integrated conductor(s) in housing and methods thereof |
| US11167121B2 (en) | 2018-05-15 | 2021-11-09 | Cardiovascular Systems, Inc. | Intravascular pump with integrated isolated conductor(s) and methods thereof |
| DE102018207611A1 (de) | 2018-05-16 | 2019-11-21 | Kardion Gmbh | Rotorlagerungssystem |
| CN111989128B (zh) | 2018-05-17 | 2024-10-25 | 心脏器械股份有限公司 | 用于在lvad中的瞬时抽吸检测算法的电流-速度关系 |
| EP3574932A1 (de) | 2018-05-28 | 2019-12-04 | Berlin Heart GmbH | Blutpumpe |
| DE102018208536A1 (de) | 2018-05-30 | 2019-12-05 | Kardion Gmbh | Leitungsvorrichtung zum Leiten eines Blutstroms für ein Herzunterstützungssystem, Verfahren zum Herstellen einer Leitungsvorrichtung und Verfahren zum Montieren eines Herzunterstützungssystems |
| DE102018208538A1 (de) | 2018-05-30 | 2019-12-05 | Kardion Gmbh | Intravasale Blutpumpe und Verfahren zur Herstellung von elektrischen Leiterbahnen |
| US11224736B2 (en) | 2018-05-31 | 2022-01-18 | Tc1 Llc | Blood pump controllers |
| JP6928188B2 (ja) | 2018-06-01 | 2021-09-01 | エフビーアール・メディカル・インコーポレイテッド | 一定直径の羽根車を備えたカテーテルポンプ |
| DE102018208911A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Leitungsvorrichtung für ein Herzunterstützungssystem und Verfahren zum Herstellen einer Leitungsvorrichtung |
| DE102018208929A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Verfahren zur Bestimmung einer Strömungsgeschwindigkeit eines durch ein implantiertes, vaskuläres Unterstützungssystem strömenden Fluids |
| DE102018208927A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Implantierbare Einrichtung zum Ermitteln eines Fluid-Volumenstroms durch ein Blutgefäß |
| DE102018208945A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Analysevorrichtung und Verfahren zum Analysieren einer Viskosität eines Fluids |
| DE102018208879A1 (de) | 2018-06-06 | 2020-01-30 | Kardion Gmbh | Verfahren zur Bestimmung eines Fluid-Gesamtvolumenstroms im Bereich eines implantierten, vaskuläres Unterstützungssystems |
| DE102018208899A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Verfahren zum Ermitteln der Schallgeschwindigkeit in einem Fluid im Bereich eines implantierten, vaskulären Unterstützungssystems |
| DE102018208913A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Verfahren zum Betreiben eines implantierten, ventrikulären Unterstützungssystems |
| DE102018208862A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Implantierbares, vaskuläres Unterstützungssystem |
| DE102018208892A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Sensorkopfvorrichtung für ein minimalinvasives Herzunterstützungssystem und Verfahren zum Herstellen einer Sensorkopfvorrichtung für ein Herzunterstützungssystem |
| DE102018208933A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Verfahren zur Bestimmung einer Strömungsgeschwindigkeit eines durch ein implantiertes, vaskuläres Unterstützungssystem strömenden Fluids |
| DE102018208931A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Vorrichtung zum Bestimmen eines Herzzeitvolumens für ein Herzunterstützungssystem, Herzunterstützungssystem und Verfahren zum Bestimmen eines Herzzeitvolumens |
| DE102018208870A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Verfahren zur Bestimmung eines Fluid-Volumenstroms durch ein implantiertes, vaskuläres Unterstützungssystem |
| DE102018208936A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Bestimmvorrichtung und Verfahren zum Bestimmen einer Viskosität eines Fluids |
| DE102018208916A1 (de) | 2018-06-06 | 2019-12-12 | Kardion Gmbh | Sensorikeinheit für ein Implantationssystem zur medizinischen Unterstützung eines Patienten und Verfahren zum Herstellen einer Sensorikeinheit |
| EP3809959B1 (de) | 2018-06-19 | 2023-07-26 | Abiomed, Inc. | Systeme zur bestimmung der herzleistung |
| DE102018210076A1 (de) | 2018-06-21 | 2019-12-24 | Kardion Gmbh | Verfahren und Vorrichtung zum Erkennen eines Verschleißzustands eines Herzunterstützungssystems, Verfahren und Vorrichtung zum Betreiben eines Herzunterstützungssystems und Herzunterstützungssystem |
| US11241570B2 (en) | 2018-07-17 | 2022-02-08 | Tc1 Llc | Systems and methods for inertial sensing for VAD diagnostics and closed loop control |
| DE102018212153A1 (de) | 2018-07-20 | 2020-01-23 | Kardion Gmbh | Zulaufleitung für eine Pumpeneinheit eines Herzunterstützungssystems, Herzunterstützungssystem und Verfahren zum Herstellen einer Zulaufleitung für eine Pumpeneinheit eines Herzunterstützungssystems |
| DE102018213151A1 (de) | 2018-08-07 | 2020-02-13 | Kardion Gmbh | Implantierbares, vaskuläres Unterstützungssystem |
| DE102018213350A1 (de) | 2018-08-08 | 2020-02-13 | Kardion Gmbh | Vorrichtung und Verfahren zur Überwachung eines Gesundheitszustands des Patienten |
| US11120908B2 (en) | 2018-09-20 | 2021-09-14 | Abiomed, Inc. | Data storage and retrieval system for non-contiguous medical device operational data |
| IL314934A (en) | 2018-09-21 | 2024-10-01 | Abiomed Inc | Use of optical fiber sensor as a diagnostic tool in catheter-based medical devices |
| DE102018216305A1 (de) | 2018-09-25 | 2020-03-26 | Kardion Gmbh | Verfahren zur Bestimmung einer Strömungsgeschwindigkeit eines durch ein implantiertes, vaskuläres Unterstützungssystem strömenden Fluids |
| WO2020068333A1 (en) | 2018-09-25 | 2020-04-02 | Tc1 Llc | Adaptive speed control algorithms and controllers for optimizing flow in ventricular assist devices |
| EP3856275B1 (de) | 2018-09-27 | 2023-01-18 | Heartware, Inc. | Mad-schätzung an vad-patienten |
| DE102018218770A1 (de) | 2018-11-02 | 2020-05-07 | Kardion Gmbh | System und Verfahren zur Steuerung eines Herzunterstützungssystems |
| CN209790495U (zh) | 2018-11-15 | 2019-12-17 | 安徽通灵仿生科技有限公司 | 一种辅助左心室功能的搏动式导管装置 |
| EP3656411A1 (de) | 2018-11-26 | 2020-05-27 | Berlin Heart GmbH | Blutpumpe zum unterstützen einer herzfunktion und verfahren zur herstellung eines pumpengehäuses einer blutpumpe |
| DE102018220658A1 (de) | 2018-11-30 | 2020-06-04 | Kardion Gmbh | Herzunterstützungssystem und Verfahren zur optischen Spektroskopie unter Verwendung eines Herzunterstützungssystems |
| WO2020132051A1 (en) | 2018-12-19 | 2020-06-25 | Boston Scientific Scimed, Inc. | Dampening element for fluid management system |
| DE102018222505A1 (de) | 2018-12-20 | 2020-06-25 | Kardion Gmbh | Dehnbares Textil und Tragesystem zur Anwendung an einem Körper eines Patienten sowie Herzunterstützungssystem |
| US11684769B2 (en) | 2018-12-21 | 2023-06-27 | Tc1 Llc | Implantable blood pump assembly including pressure sensor and methods of assembling same |
| WO2020132390A1 (en) | 2018-12-21 | 2020-06-25 | Abiomed, Inc. | Using natural language processing to find adverse events |
| IL284647B2 (en) | 2019-01-16 | 2025-07-01 | Abiomed Inc | Left ventricular volume and cardiac output estimation using machine learning model |
| EP3782665B1 (de) | 2019-01-24 | 2021-08-25 | Magenta Medical Ltd. | Ventrikelunterstützungsvorrichtung |
| WO2020176170A1 (en) | 2019-02-28 | 2020-09-03 | Tc1 Llc | Inflow cannula including expandable sleeve and methods of implanting same |
| US11413445B2 (en) | 2019-03-12 | 2022-08-16 | Heartware, Inc. | Method of monitoring health conditions of a patient having an implantable blood pump |
| US12097016B2 (en) | 2019-03-14 | 2024-09-24 | Abiomed, Inc. | Blood flow rate measurement system |
| US11337724B2 (en) | 2019-03-15 | 2022-05-24 | Terumo Kabushiki Kaisha | Method and system for controlling rotational speed of an agitator or catheter |
| US10824898B2 (en) | 2019-03-21 | 2020-11-03 | Abiomed, Inc. | Intelligent image segmentation prior to optical character recognition (OCR) |
| US12257021B2 (en) | 2019-03-26 | 2025-03-25 | Abiomed, Inc. | Dynamically adjustable frame rate from medical device controller |
| US20200312450A1 (en) | 2019-03-30 | 2020-10-01 | Abiomed, Inc. | Medical Device Location and Tracking System |
| CN109939282A (zh) | 2019-04-23 | 2019-06-28 | 四川大学 | 一种经皮左心辅助循环系统 |
| CN210020563U (zh) | 2019-04-23 | 2020-02-07 | 四川大学 | 一种经皮左心辅助循环系统 |
| CN114040702A (zh) | 2019-04-30 | 2022-02-11 | Gentuity有限责任公司 | 具有流体加压元件的成像探头 |
| CA3132063A1 (en) | 2019-05-17 | 2020-11-26 | Boston Scientific Scimed, Inc. | Medical imaging devices and systems |
| AU2020277752B2 (en) | 2019-05-23 | 2025-03-06 | Magenta Medical Ltd | Blood pumps |
| US11581083B2 (en) | 2019-05-31 | 2023-02-14 | Abiomed, Inc. | Intra-aortic pressure forecasting |
| US11931528B2 (en) | 2019-06-07 | 2024-03-19 | Boston Scientific Scimed, Inc. | Zero force catheter |
| EP3753594A1 (de) | 2019-06-18 | 2020-12-23 | Abiomed Europe GmbH | System und verfahren zur vorbereitung eines katheters vor gebruach |
| CA3143978A1 (en) | 2019-06-28 | 2020-12-30 | Abiomed, Inc. | Blood pump with capability of electrocardiogram (ekg) monitoring, defibrillation and pacing |
| US11527322B2 (en) | 2019-06-30 | 2022-12-13 | Abiomed, Inc. | Context-based user interface to medical database |
| US12102815B2 (en) | 2019-09-25 | 2024-10-01 | Shifamed Holdings, Llc | Catheter blood pumps and collapsible pump housings |
| US11583347B2 (en) | 2019-10-31 | 2023-02-21 | Terumo Cardiovascular Systems Corporation | Heart-lung machine with augmented reality display |
| AU2020376906B2 (en) | 2019-11-01 | 2024-09-05 | Terumo Cardiovascular Systems Corporation | Semi-autonomous medical systems and methods |
| US11707617B2 (en) | 2019-11-22 | 2023-07-25 | Heartware, Inc. | Method to extract and quantify the cardiac end diastolic point/mitral valve closing point from the HVAD estimated flow waveform |
| WO2021126683A1 (en) | 2019-12-20 | 2021-06-24 | Tc1 Llc | Systems and methods for personalized cardiovascular analyses |
| US11806518B2 (en) | 2020-01-10 | 2023-11-07 | Heartware, Inc. | Passive thrust bearing angle |
| US11832868B2 (en) | 2020-01-28 | 2023-12-05 | Boston Scientific Scimed, Inc. | Measuring the presence time of a catheter in a patient during a medical procedure |
| DE102020102473A1 (de) | 2020-01-31 | 2021-08-05 | Kardion Gmbh | Pumpe zum Fördern eines Fluids und Verfahren zum Herstellen einer Pumpe |
| EP3884970A1 (de) | 2020-03-27 | 2021-09-29 | Abiomed Europe GmbH | Vorrichtung und verfahren zur bestimmung eines co2-partialdruckwerts auf der blutseite eines oxygenators |
| KR102821548B1 (ko) | 2020-04-06 | 2025-06-19 | 보스톤 싸이엔티픽 싸이메드 인코포레이티드 | 이미지 프로세싱 시스템들 및 이의 사용 방법들 |
| CA3176272A1 (en) | 2020-04-07 | 2021-10-14 | Magenta Medical Ltd | Ventricular assist device |
| EP4138649B1 (de) | 2020-04-23 | 2025-09-24 | Shifamed Holdings, LLC | Intrakardiale sensoren mit schaltbaren konfigurationen und zugehörige systeme und verfahren |
| US11694539B2 (en) | 2020-06-16 | 2023-07-04 | Heartware, Inc. | Notification system for low-level preventative LVAD alerts |
| WO2022067301A1 (en) | 2020-09-25 | 2022-03-31 | Boston Scientific Scimed, Inc. | Medical imaging device |
| USD1017699S1 (en) | 2020-09-25 | 2024-03-12 | Boston Scientific Scimed, Inc. | Indicator sticker with combined inner and outer portions |
| WO2022072974A1 (en) | 2020-09-30 | 2022-04-07 | Boston Scientific Neuromodulation Corporation | Adjustment of advertising interval in communications between an implantable medical device and an external device |
| US12318601B2 (en) | 2020-10-07 | 2025-06-03 | Abiomed Europe Gmbh | Electrode assembly patch for conductance and admittance measurements |
| CA3199214A1 (en) | 2020-11-20 | 2022-05-27 | Marvin MITZE | Mechanical circulatory support system with insertion tool |
| WO2022173970A1 (en) | 2021-02-10 | 2022-08-18 | Shifamed Holdings, Llc | Catheter blood pumps with collapsible pump housing and sensor system |
| CN118103106A (zh) | 2021-09-23 | 2024-05-28 | 开迪恩有限公司 | 用于制造心脏支持系统的方法和设备 |
| US20230191141A1 (en) | 2021-10-07 | 2023-06-22 | Kardion Gmbh | Transcutaneous energy transfer |
| EP4252825A3 (de) | 2021-10-11 | 2023-12-27 | Magenta Medical Ltd. | Ventrikuläre hilfsvorrichtung |
| USD1017634S1 (en) | 2021-11-02 | 2024-03-12 | Abiomed, Inc. | Display panel or portion thereof with graphical user interface |
| USD1014552S1 (en) | 2021-11-02 | 2024-02-13 | Abiomed, Inc. | Display panel or portion thereof with graphical user interface |
| US20230173250A1 (en) | 2021-12-03 | 2023-06-08 | Kardion Gmbh | Cardiac pump with optical fiber for laser doppler |
| USD1001145S1 (en) | 2021-12-10 | 2023-10-10 | Abiomed, Inc. | Display panel or portion thereof with graphical user interface |
| USD1001146S1 (en) | 2021-12-10 | 2023-10-10 | Abiomed, Inc. | Display panel or portion thereof with graphical user interface |
| USD1012284S1 (en) | 2022-02-09 | 2024-01-23 | Boston Scientific Scimed, Inc. | Medical device system and removable connectors set |
| US20240011808A1 (en) | 2022-07-11 | 2024-01-11 | Kardion Gmbh | Laser doppler velocimetry flow measurement |
| US20240074828A1 (en) | 2022-09-06 | 2024-03-07 | Kardion Gmbh | Medical device holding and mounting system |
-
2018
- 2018-06-06 DE DE102018208899.3A patent/DE102018208899A1/de active Pending
-
2019
- 2019-06-06 JP JP2020567974A patent/JP7387180B2/ja active Active
- 2019-06-06 CN CN201980047180.XA patent/CN112533543B/zh active Active
- 2019-06-06 US US15/734,322 patent/US12311160B2/en active Active
- 2019-06-06 EP EP19729271.7A patent/EP3801281A1/de active Pending
- 2019-06-06 WO PCT/EP2019/064803 patent/WO2019234163A1/de not_active Ceased
-
2025
- 2025-05-23 US US19/218,142 patent/US20250345590A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20250345590A1 (en) | 2025-11-13 |
| JP2021526891A (ja) | 2021-10-11 |
| WO2019234163A1 (de) | 2019-12-12 |
| US20210339002A1 (en) | 2021-11-04 |
| DE102018208899A1 (de) | 2019-12-12 |
| CN112533543A (zh) | 2021-03-19 |
| JP7387180B2 (ja) | 2023-11-28 |
| US12311160B2 (en) | 2025-05-27 |
| CN112533543B (zh) | 2024-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019234163A1 (de) | Verfahren und system zum ermitteln der schallgeschwindigkeit in einem fluid im bereich eines implantierten, vaskulären unterstützungssystems | |
| EP3856038B1 (de) | Verfahren und system zur bestimmung einer strömungsgeschwindigkeit eines durch ein implantiertes, vaskuläres unterstützungssystem strömenden fluids | |
| EP3801276B1 (de) | Verfahren zur bestimmung einer strömungsgeschwindigkeit eines durch ein implantiertes, vaskuläres unterstützungssystem strömenden fluids und implantierbares vaskuläres unterstützungssystem | |
| EP3801668B1 (de) | Verfahren zur bestimmung einer strömungsgeschwindigkeit eines durch ein implantiertes, vaskuläres unterstützungssystem strömenden fluids und implantierbares, vaskuläres unterstützungssystem | |
| DE69228974T2 (de) | Ultraschall-Doppler-Anordnung zur Messung der Blutströmung | |
| DE3625041C2 (de) | ||
| Fisher et al. | The effect of variations of pulsed Doppler sampling site on calculation of cardiac output: an experimental study in open-chest dogs. | |
| DE69419614T2 (de) | Verfahren und vorrichtung zur unblutigen ermittlung und anzeige von dynamischen parametern der menschlichen und tierischen intrakraniellen medien | |
| DE2911258C2 (de) | Vorrichtung zum noninvasiven Messen der Blutströmungsgeschwindigkeit nach der Ultraschall-Doppler-Effekt-Methode | |
| DE102018208927A1 (de) | Implantierbare Einrichtung zum Ermitteln eines Fluid-Volumenstroms durch ein Blutgefäß | |
| DE3689698T2 (de) | Blutgeschwindigkeitsmesser nach dem Ultraschall-Doppler-Prinzip. | |
| DE69029211T2 (de) | Ultraschalldiagnosegerät zum Charakterisieren von Gewebe durch Analyse von Rückstreustrahlung | |
| WO2020030686A1 (de) | Implantierbares, vaskuläres unterstützungssystem | |
| DE68920769T2 (de) | Gerät zur Messung der Geschwindigkeit von Organen und der Blutströmung durch Korrelationsverfahren. | |
| DE69214023T2 (de) | Filter zur Festechounterdrückung für ein Ultraschalldopplersystem | |
| DE69117345T2 (de) | Mess- und Anzeigevorrichtung für die Geschwindigkeit der Blutströmung mittels Ultraschallechographie | |
| DE2758039C3 (de) | Vorrichtung zur fortlaufenden und quantitativen Bestimmung der hämodynamischen Parameter wie Blutströmungsgeschwindigkeit, Blutdruck, Herzschlag-Volumen | |
| DE202008003245U1 (de) | Vorrichtung zur Ultraschall-Messung von Blutfluß | |
| DE3542534C2 (de) | Ultraschalldiagnosevorrichtung | |
| EP3545269A1 (de) | Verfahren zur laufzeitmessung eines ultraschallsignals in einem strömenden fluid | |
| AT392358B (de) | Verfahren und einrichtung zur untersuchung der rheologischen verhaeltnisse in einem strom eines partikel enthaltenden fluiden mediums | |
| SU1377712A1 (ru) | Способ измерени коэффициента затухани ультразвука в биологических ткан х | |
| DE1812017B2 (de) | Anordnung zur Messung der Innenabmessung von Gefässen im lebenden Körper | |
| DE2509568C2 (de) | Vorrichtung zur Durchführung von Querschnittsmessungen an von Flüssigkelten durchströmten Leitungen Siemens AG, 1000 Berlin und 8000 München | |
| Goldberg et al. | 65.1 Transducers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20201112 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20240503 |